22nd is the correct spelling, and 22th is always incorrect. Many people type 22th because most numbers end in th, like 4th, 5th, and 10th. But English decides the ending by the last digit, and every number that ends in 2 takes the nd suffix. That is why we write 22nd, just like 2nd and 32nd.
This small mistake shows up in dates, birthday wishes, anniversaries, emails, and invitations, and it can make your writing look careless. In this guide, you will learn the simple ordinal number rule, see real examples, and get an easy memory trick to settle 22th or 22nd for good.
22th or 22nd: Quick Answer
The correct form is 22nd. The form “22th” is not accepted in standard English, and dictionaries do not list it as a valid ordinal number. Whenever you face the choice of 22th or 22nd, pick 22nd.
- Correct: Her birthday is on the 22nd of March.
- Incorrect: Her birthday is on the 22th of March.
Simple Rule to Choose the Right Ordinal Suffix
Look at the last digit of the number and add the matching ending.
| Last Digit | Ending | Example |
| 1 | st | 21st |
| 2 | nd | 22nd |
| 3 | rd | 23rd |
| 4 to 9 and 0 | th | 24th, 30th |
Since 22 ends in 2, it becomes 22nd.
The Origin of 22nd: Why the Ending Is “nd”
Ordinal numbers show order or position, such as first, second, and third. When people began writing these words in short form, they kept the last two letters of the spelled-out word and attached them to the digits.
The word “second” ends in nd, so 2nd uses nd. The full word for 22 is “twenty-second,” which also ends in second. That is why 22 keeps the same ending.
| Number | Word Form | Short Form |
| 2 | second | 2nd |
| 22 | twenty-second | 22nd |
| 32 | thirty-second | 32nd |
Easy Rule for Ordinal Numbers (st, nd, rd, th)
Ordinal suffixes follow a steady pattern. Numbers ending in 1 take st, numbers ending in 2 take nd, numbers ending in 3 take rd, and most other numbers take th.
Examples:
- 1st, 21st, 31st, 101st
- 2nd, 22nd, 32nd, 102nd
- 3rd, 23rd, 33rd, 103rd
- 4th, 24th, 25th, 30th
Exceptions: Why 11th, 12th, and 13th Use “th”
The numbers 11, 12, and 13 are the main exceptions. Even though they end in 1, 2, and 3, they always take th.
- Correct: 11th, 12th, 13th
- Incorrect: 11st, 12nd, 13rd
The same exception applies to larger numbers that end in 11, 12, or 13, such as 111th, 112th, and 113th. The number 22 is not an exception, so it follows the normal rule and becomes 22nd.
British English vs American English Spelling
There is no spelling difference here. Both British English and American English use 22nd, and both reject 22th. This is a grammar rule, not a regional spelling choice like “color” and “colour.”
| Form | British English | American English |
| 22nd | Correct | Correct |
| 22th | Incorrect | Incorrect |
Date Format Difference (US vs UK)
The only real difference is the order of the date, not the suffix.
- American style: September 22nd, 2026
- British style: 22nd September 2026 or the 22nd of September
In both styles, the ending stays nd.
Which Spelling Should You Use?
Always use 22nd. This is the safe choice for school work, business writing, personal messages, and international audiences. When you are unsure about 22th or 22nd, check the last digit. It is a 2, so the ending is nd.
Audience-Based Usage
| Audience | Correct Form |
| Students and teachers | 22nd |
| Business and formal documents | 22nd |
| Social media and casual chats | 22nd |
| UK, US, and global readers | 22nd |
Common Mistakes with 22th or 22nd
Most mistakes happen because writers copy the common “th” pattern without checking the last digit. The error appears in dates, birthdays, anniversaries, and floor numbers.
Common Errors and Fixes
| Incorrect | Correct |
| 22th birthday | 22nd birthday |
| January 22th | January 22nd |
| 22th anniversary | 22nd anniversary |
| 22th floor | 22nd floor |
Incorrect vs Correct Examples
| Incorrect Sentence | Correct Sentence |
| The meeting is on July 22th. | The meeting is on July 22nd. |
| Happy 22th birthday! | Happy 22nd birthday! |
| Our office is on the 22th floor. | Our office is on the 22nd floor. |
Why the Mistake Happens
Most ordinal numbers end in “th,” so the brain repeats that pattern automatically. People also type quickly and forget that numbers ending in 1, 2, and 3 follow different endings. Once you know the last digit rule, the mistake becomes easy to catch.
22th or 22nd in Everyday Examples
The correct form appears in many everyday situations. Here is how 22nd looks in real writing.
Emails
- Our meeting is scheduled for the 22nd.
- Please send the report by October 22nd.
News
- The event will begin on the 22nd of August.
- The company will announce its results on March 22nd.
Social Media
- Counting down to my 22nd birthday!
- See you all on June 22nd.
Formal Writing
- The agreement takes effect on the 22nd day of July.
- The committee will meet on November 22nd.
Invitations
- You are invited to celebrate our 22nd anniversary.
- Please join us on September 22nd at 7 p.m.
22th or 22nd With Birthdays and Months
The rule stays the same for every month and every birthday. Use 22nd each time.
22th or 22nd Birthday
The correct phrase is 22nd birthday. Example: Happy 22nd birthday, Sara!
22th or 22nd January
Write January 22nd or 22nd January. Example: The exam is on January 22nd.
22th or 22nd June
Write June 22nd or 22nd June. Example: We are traveling on the 22nd of June.
22th or 22nd July
Write July 22nd or 22nd July. Example: The concert takes place on July 22nd.
22th or 22nd August
Write August 22nd or 22nd August. Example: Her wedding is on August 22nd.
22th or 22nd September
Write September 22nd or 22nd September. Example: The new term starts on September 22nd.
22th or 22nd December
Write December 22nd or 22nd December. Example: The holiday break begins on December 22nd.
How to Write 22nd in Words (Twenty-Second)
In words, 22nd is written as twenty-second. Use a hyphen between “twenty” and “second.”
- The twenty-second day of the month
- Her twenty-second birthday
- The twenty-second chapter
Use the number form (22nd) for dates and quick references. Use the word form (twenty-second) in formal writing where style guides prefer spelled-out numbers.
Ordinal Numbers Similar to 22nd
Other numbers follow the same pattern. Learning them together helps you avoid repeat mistakes.
| Correct | Incorrect |
| 21st | 21th |
| 22nd | 22th |
| 23rd | 23th |
| 31st | 31th |
| 32nd | 32th |
| 42nd | 42th |
| 102nd | 102th |
Memory Trick to Remember 22nd
Think of the word second. It ends in nd, so any number ending in 2 uses nd too.
- 2nd
- 22nd
- 32nd
- 42nd
You can also say the two forms aloud. “Twenty-second” sounds natural, but “twenty-twoth” sounds wrong. Your ear can help your eye.
22th or 22nd: Google Trends & Usage Data
People search for this topic because ordinal endings are easy to mix up, and a quick check before sending a message feels safer. Language tools such as Google Ngram Viewer also show that 22nd appears far more often in published writing than 22th, which reflects the correct standard.
Why People Search This Keyword
- They want to write a date correctly.
- They are preparing a birthday message or invitation.
- They are checking homework or a business document.
- They want to learn the ordinal number rule.
Popular Countries
This question is common wherever English is learned or used, including the United States, the United Kingdom, Canada, India, and Pakistan. Since the rule is the same everywhere, one correct answer works for all readers.
Comparison Table: 22th vs 22nd
| Feature | 22nd | 22th |
| Correct in standard English | Yes | No |
| Follows the last digit rule | Yes | No |
| Accepted in British English | Yes | No |
| Accepted in American English | Yes | No |
| Suitable for formal writing | Yes | No |
| Written in words | Twenty-second | Not applicable |
Frequently Asked Questions
s it 22th or 22nd?
The correct form is 22nd. Numbers that end in 2 take the suffix “nd,” so 22th is incorrect.
Is it happy 22th or 22nd birthday?
The correct greeting is Happy 22nd birthday. The word “birthday” does not change the ordinal rule.
Is it 21st or 22nd?
Both are correct, but they mean different numbers. 21st is for the number 21, and 22nd is for the number 22. Choose the one that matches the number you mean.
Is it 22nd or 23rd?
Again, both are correct for different numbers. 22nd means twenty-second, and 23rd means twenty-third. The endings differ because 22 ends in 2 and 23 ends in 3.
Is it 22th or 22nd monthsary?
The correct form is 22nd monthsary. “Monthsary” is an informal word used to mark a monthly anniversary, and the ordinal rule still applies.
How do you write 22nd in words?
Write it as twenty-second, with a hyphen between the two words.
Do British and American English spell 22nd differently?
No. Both use 22nd. The only difference is the date order, such as September 22nd in American style and 22nd September in British style.
Final Thoughts
The choice between 22th or 22nd is simple once you know the rule. 22nd is the only correct form because numbers ending in 2 take “nd,” just like 2nd and 32nd. This holds in British English, American English, and every type of writing.
Keep the word second in mind, and you will get it right every time. A small detail like this makes your dates, messages, and documents look clear and polished, so write with confidence.