21,022 in words
21,022
twenty-one thousand and twenty-two
21,022 is written twenty-one thousand and twenty-two.
Ways to write it
- As an ordinal
- twenty-one thousand and twenty-second
- Expanded form
- 20,000 + 1,000 + 20 + 2
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 0 | 0 |
| tens | 2 | 20 |
| ones | 2 | 2 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 23, 46, 457, 914, 10,511 and 21,022 (8 factors)
- First 10 multiples
- 21,022, 42,044, 63,066, 84,088, 105,110, 126,132, 147,154, 168,176, 189,198, 210,220
- Square
- 21,022 × 21,022 = 441,924,484
- Square root
- ≈ 144.99
- Sum of the digits
- 2 + 1 + 0 + 2 + 2 = 7
- Rounded to the nearest 10
- 21,020
- Rounded to the nearest 100
- 21,000
- Rounded to the nearest 1000
- 21,000
- Number before
- 21,021
- Number after
- 21,023
- In binary
101001000011110
Quick check
What number comes just after 21,022?
Show the answer
21,023
Is 21,022 even or odd?
Show the answer
Even
What is 21,022 + 10?
Show the answer
21,032
Practise with a game
Factors, Multiples & Primes
Multiples, factors, prime numbers, square numbers and prime factors.
Number Patterns
Find the missing number in a sequence.Frequently asked questions
How do you write 21,022 in words?
21,022 is written "twenty-one thousand and twenty-two".
Is 21,022 a prime number?
No. 21,022 is a composite number, because it has more than two factors.
What are the factors of 21,022?
The factors of 21,022 are 1, 2, 23, 46, 457, 914, 10,511 and 21,022.