10,021 in words
10,021
ten thousand and twenty-one
10,021 is written ten thousand and twenty-one.
Ways to write it
- As an ordinal
- ten thousand and twenty-first
- Expanded form
- 10,000 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 1 | 10,000 |
| thousands | 0 | 0 |
| hundreds | 0 | 0 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 11, 911 and 10,021 (4 factors)
- First 10 multiples
- 10,021, 20,042, 30,063, 40,084, 50,105, 60,126, 70,147, 80,168, 90,189, 100,210
- Square
- 10,021 × 10,021 = 100,420,441
- Square root
- ≈ 100.10
- Sum of the digits
- 1 + 0 + 0 + 2 + 1 = 4
- Rounded to the nearest 10
- 10,020
- Rounded to the nearest 100
- 10,000
- Rounded to the nearest 1000
- 10,000
- Number before
- 10,020
- Number after
- 10,022
- In binary
10011100100101
Quick check
What number comes just after 10,021?
Show the answer
10,022
Is 10,021 even or odd?
Show the answer
Odd
What is 10,021 + 10?
Show the answer
10,031
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 10,021 in words?
10,021 is written "ten thousand and twenty-one".
Is 10,021 a prime number?
No. 10,021 is a composite number, because it has more than two factors.
What are the factors of 10,021?
The factors of 10,021 are 1, 11, 911 and 10,021.