421,221 in words
421,221
four hundred and twenty-one thousand two hundred and twenty-one
421,221 is written four hundred and twenty-one thousand two hundred and twenty-one.
Ways to write it
- As an ordinal
- four hundred and twenty-one thousand two hundred and twenty-first
- Expanded form
- 400,000 + 20,000 + 1,000 + 200 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 4 | 400,000 |
| ten thousands | 2 | 20,000 |
| 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, 3, 140,407 and 421,221 (4 factors)
- First 10 multiples
- 421,221, 842,442, 1,263,663, 1,684,884, 2,106,105, 2,527,326, 2,948,547, 3,369,768, 3,790,989, 4,212,210
- Square
- 421,221 × 421,221 = 177,427,130,841
- Square root
- ≈ 649.02
- Sum of the digits
- 4 + 2 + 1 + 2 + 2 + 1 = 12
- Rounded to the nearest 10
- 421,220
- Rounded to the nearest 100
- 421,200
- Rounded to the nearest 1000
- 421,000
- Number before
- 421,220
- Number after
- 421,222
- In binary
1100110110101100101
Quick check
What number comes just after 421,221?
Show the answer
421,222
Is 421,221 even or odd?
Show the answer
Odd
What is 421,221 + 10?
Show the answer
421,231
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 421,221 in words?
421,221 is written "four hundred and twenty-one thousand two hundred and twenty-one".
Is 421,221 a prime number?
No. 421,221 is a composite number, because it has more than two factors.
What are the factors of 421,221?
The factors of 421,221 are 1, 3, 140,407 and 421,221.