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22 in words

22

twenty-two

22 is written twenty-two.

Ways to write it

As an ordinal: twenty-second
Roman numeral: XXII
Expanded form: 20 + 2

Place value

Place	Digit	Value
tens	2	20
ones	2	2

Number facts

Even or odd: Even
Prime or composite: Composite
Factors: 1, 2, 11 and 22 (4 factors)
First 10 multiples: 22, 44, 66, 88, 110, 132, 154, 176, 198, 220
Square: 22 × 22 = 484
Square root: ≈ 4.69
Sum of the digits: 2 + 2 = 4
Rounded to the nearest 10: 20
Number before: 21
Number after: 23
In binary: 10110

Quick check

What number comes just after 22?
Show the answer
23
Is 22 even or odd?
Show the answer
Even
What is 22 + 10?
Show the answer
32

Practise with a game

Count with Me

Count pictures up to 5, 10 or 20 and compare groups.

Place Value Quest

Ones, tens, hundreds and thousands.

Times Tables Challenge

Practise any times table from 2× to 12×.

Frequently asked questions

How do you write 22 in words?

22 is written "twenty-two".

Is 22 a prime number?

No. 22 is a composite number, because it has more than two factors.

What are the factors of 22?

The factors of 22 are 1, 2, 11 and 22.

How do you write 22 in Roman numerals?

22 in Roman numerals is XXII.