How do you spell 21 in words :
Convert 21 dollars in words (USD) :
21 spelling in British Pound amount (GBP) :
How to write 21 Canadian Dollar in letters (CAD) :
How to write numbers in words similar to 21 :
Reminder of the spelling rules to write the number 21 in letters :
Here are basic rules for spelling out 21 and other cardinal numbers :
- To write the number 21 in dollar amount, the currency symbol is placed before the number, with no spaces : $21 .
If spelled out in words, the currency symbol is removed : Twenty-one dollars dollars.
- Decimals should be separated by periods and thousands by commas.
- Numbers from 21 to 99 are written with a hyphen : Ninety-eight, Ninety-nine
- From 13 to 19, these numbers are composed of the digits from 3 to 9, and they all end with "-teen" : Fifteen, Sixteen
- If you want to know how to spell another number in English, type any number in the number to words converter above to see how it is spelled in English.
More information about the number 21 :
21 is the number following 20 and preceding 22.
The number 21 is included in the list of numbers from one to hundred spelling
21 is an Odd number
The square root of 21 is : 4.5825756949558
Its square is : 441
It is not a prime number
The divisors of the number 21 are : 1, 3, 7, 21