221,231 in words
221,231
two hundred twenty-one thousand two hundred thirty-one
221,231 is written two hundred twenty-one thousand two hundred thirty-one.
Ways to write it
- As an ordinal
- two hundred twenty-one thousand two hundred thirty-first
- Expanded form
- 200,000 + 20,000 + 1,000 + 200 + 30 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 2 | 200,000 |
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 2 | 200 |
| tens | 3 | 30 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 197, 1,123 and 221,231 (4 factors)
- First 10 multiples
- 221,231, 442,462, 663,693, 884,924, 1,106,155, 1,327,386, 1,548,617, 1,769,848, 1,991,079, 2,212,310
- Square
- 221,231 × 221,231 = 48,943,155,361
- Square root
- ≈ 470.35
- Sum of the digits
- 2 + 2 + 1 + 2 + 3 + 1 = 11
- Rounded to the nearest 10
- 221,230
- Rounded to the nearest 100
- 221,200
- Rounded to the nearest 1000
- 221,000
- Number before
- 221,230
- Number after
- 221,232
- In binary
110110000000101111
Quick check
What number comes just after 221,231?
Show the answer
221,232
Is 221,231 even or odd?
Show the answer
Odd
What is 221,231 + 10?
Show the answer
221,241
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 221,231 in words?
221,231 is written "two hundred twenty-one thousand two hundred thirty-one".
Is 221,231 a prime number?
No. 221,231 is a composite number, because it has more than two factors.
What are the factors of 221,231?
The factors of 221,231 are 1, 197, 1,123 and 221,231.