221,421 in words
221,421
two hundred and twenty-one thousand four hundred and twenty-one
221,421 is written two hundred and twenty-one thousand four hundred and twenty-one.
Ways to write it
- As an ordinal
- two hundred and twenty-one thousand four hundred and twenty-first
- Expanded form
- 200,000 + 20,000 + 1,000 + 400 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 2 | 200,000 |
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 4 | 400 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 23, 69, 3,209, 9,627, 73,807 and 221,421 (8 factors)
- First 10 multiples
- 221,421, 442,842, 664,263, 885,684, 1,107,105, 1,328,526, 1,549,947, 1,771,368, 1,992,789, 2,214,210
- Square
- 221,421 × 221,421 = 49,027,259,241
- Square root
- ≈ 470.55
- Sum of the digits
- 2 + 2 + 1 + 4 + 2 + 1 = 12
- Rounded to the nearest 10
- 221,420
- Rounded to the nearest 100
- 221,400
- Rounded to the nearest 1000
- 221,000
- Number before
- 221,420
- Number after
- 221,422
- In binary
110110000011101101
Quick check
What number comes just after 221,421?
Show the answer
221,422
Is 221,421 even or odd?
Show the answer
Odd
What is 221,421 + 10?
Show the answer
221,431
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 221,421 in words?
221,421 is written "two hundred and twenty-one thousand four hundred and twenty-one".
Is 221,421 a prime number?
No. 221,421 is a composite number, because it has more than two factors.
What are the factors of 221,421?
The factors of 221,421 are 1, 3, 23, 69, 3,209, 9,627, 73,807 and 221,421.