121,421 in words
121,421
one hundred and twenty-one thousand four hundred and twenty-one
121,421 is written one hundred and twenty-one thousand four hundred and twenty-one.
Ways to write it
- As an ordinal
- one hundred and twenty-one thousand four hundred and twenty-first
- Expanded form
- 100,000 + 20,000 + 1,000 + 400 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 1 | 100,000 |
| 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
- Prime
- Factors
- 1 and 121,421 (2 factors)
- First 10 multiples
- 121,421, 242,842, 364,263, 485,684, 607,105, 728,526, 849,947, 971,368, 1,092,789, 1,214,210
- Square
- 121,421 × 121,421 = 14,743,059,241
- Square root
- ≈ 348.46
- Sum of the digits
- 1 + 2 + 1 + 4 + 2 + 1 = 11
- Rounded to the nearest 10
- 121,420
- Rounded to the nearest 100
- 121,400
- Rounded to the nearest 1000
- 121,000
- Number before
- 121,420
- Number after
- 121,422
- In binary
11101101001001101
Quick check
What number comes just after 121,421?
Show the answer
121,422
Is 121,421 even or odd?
Show the answer
Odd
What is 121,421 + 10?
Show the answer
121,431
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 121,421 in words?
121,421 is written "one hundred and twenty-one thousand four hundred and twenty-one".
Is 121,421 a prime number?
Yes. 121,421 is a prime number: its only factors are 1 and 121,421.
What are the factors of 121,421?
The factors of 121,421 are 1 and 121,421.