12,421 in words
12,421
twelve thousand four hundred and twenty-one
12,421 is written twelve thousand four hundred and twenty-one.
Ways to write it
- As an ordinal
- twelve thousand four hundred and twenty-first
- Expanded form
- 10,000 + 2,000 + 400 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 1 | 10,000 |
| thousands | 2 | 2,000 |
| hundreds | 4 | 400 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Prime
- Factors
- 1 and 12,421 (2 factors)
- First 10 multiples
- 12,421, 24,842, 37,263, 49,684, 62,105, 74,526, 86,947, 99,368, 111,789, 124,210
- Square
- 12,421 × 12,421 = 154,281,241
- Square root
- ≈ 111.45
- Sum of the digits
- 1 + 2 + 4 + 2 + 1 = 10
- Rounded to the nearest 10
- 12,420
- Rounded to the nearest 100
- 12,400
- Rounded to the nearest 1000
- 12,000
- Number before
- 12,420
- Number after
- 12,422
- In binary
11000010000101
Quick check
What number comes just after 12,421?
Show the answer
12,422
Is 12,421 even or odd?
Show the answer
Odd
What is 12,421 + 10?
Show the answer
12,431
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 12,421 in words?
12,421 is written "twelve thousand four hundred and twenty-one".
Is 12,421 a prime number?
Yes. 12,421 is a prime number: its only factors are 1 and 12,421.
What are the factors of 12,421?
The factors of 12,421 are 1 and 12,421.