231,221 in words
231,221
two hundred and thirty-one thousand two hundred and twenty-one
231,221 is written two hundred and thirty-one thousand two hundred and twenty-one.
Ways to write it
- As an ordinal
- two hundred and thirty-one thousand two hundred and twenty-first
- Expanded form
- 200,000 + 30,000 + 1,000 + 200 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 2 | 200,000 |
| ten thousands | 3 | 30,000 |
| thousands | 1 | 1,000 |
| hundreds | 2 | 200 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 59, 3,919 and 231,221 (4 factors)
- First 10 multiples
- 231,221, 462,442, 693,663, 924,884, 1,156,105, 1,387,326, 1,618,547, 1,849,768, 2,080,989, 2,312,210
- Square
- 231,221 × 231,221 = 53,463,150,841
- Square root
- ≈ 480.85
- Sum of the digits
- 2 + 3 + 1 + 2 + 2 + 1 = 11
- Rounded to the nearest 10
- 231,220
- Rounded to the nearest 100
- 231,200
- Rounded to the nearest 1000
- 231,000
- Number before
- 231,220
- Number after
- 231,222
- In binary
111000011100110101
Quick check
What number comes just after 231,221?
Show the answer
231,222
Is 231,221 even or odd?
Show the answer
Odd
What is 231,221 + 10?
Show the answer
231,231
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 231,221 in words?
231,221 is written "two hundred and thirty-one thousand two hundred and twenty-one".
Is 231,221 a prime number?
No. 231,221 is a composite number, because it has more than two factors.
What are the factors of 231,221?
The factors of 231,221 are 1, 59, 3,919 and 231,221.