20,221 in words
20,221
twenty thousand two hundred twenty-one
20,221 is written twenty thousand two hundred twenty-one.
Ways to write it
- As an ordinal
- twenty thousand two hundred twenty-first
- Expanded form
- 20,000 + 200 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 0 | 0 |
| hundreds | 2 | 200 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 73, 277 and 20,221 (4 factors)
- First 10 multiples
- 20,221, 40,442, 60,663, 80,884, 101,105, 121,326, 141,547, 161,768, 181,989, 202,210
- Square
- 20,221 × 20,221 = 408,888,841
- Square root
- ≈ 142.20
- Sum of the digits
- 2 + 0 + 2 + 2 + 1 = 7
- Rounded to the nearest 10
- 20,220
- Rounded to the nearest 100
- 20,200
- Rounded to the nearest 1000
- 20,000
- Number before
- 20,220
- Number after
- 20,222
- In binary
100111011111101
Quick check
What number comes just after 20,221?
Show the answer
20,222
Is 20,221 even or odd?
Show the answer
Odd
What is 20,221 + 10?
Show the answer
20,231
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 20,221 in words?
20,221 is written "twenty thousand two hundred twenty-one".
Is 20,221 a prime number?
No. 20,221 is a composite number, because it has more than two factors.
What are the factors of 20,221?
The factors of 20,221 are 1, 73, 277 and 20,221.