121,021 in words
121,021
one hundred and twenty-one thousand and twenty-one
121,021 is written one hundred and twenty-one thousand and twenty-one.
Ways to write it
- As an ordinal
- one hundred and twenty-one thousand and twenty-first
- Expanded form
- 100,000 + 20,000 + 1,000 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 1 | 100,000 |
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 0 | 0 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Prime
- Factors
- 1 and 121,021 (2 factors)
- First 10 multiples
- 121,021, 242,042, 363,063, 484,084, 605,105, 726,126, 847,147, 968,168, 1,089,189, 1,210,210
- Square
- 121,021 × 121,021 = 14,646,082,441
- Square root
- ≈ 347.88
- Sum of the digits
- 1 + 2 + 1 + 0 + 2 + 1 = 7
- Rounded to the nearest 10
- 121,020
- Rounded to the nearest 100
- 121,000
- Rounded to the nearest 1000
- 121,000
- Number before
- 121,020
- Number after
- 121,022
- In binary
11101100010111101
Quick check
What number comes just after 121,021?
Show the answer
121,022
Is 121,021 even or odd?
Show the answer
Odd
What is 121,021 + 10?
Show the answer
121,031
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 121,021 in words?
121,021 is written "one hundred and twenty-one thousand and twenty-one".
Is 121,021 a prime number?
Yes. 121,021 is a prime number: its only factors are 1 and 121,021.
What are the factors of 121,021?
The factors of 121,021 are 1 and 121,021.