120,721 in words
120,721
one hundred and twenty thousand seven hundred and twenty-one
120,721 is written one hundred and twenty thousand seven hundred and twenty-one.
Ways to write it
- As an ordinal
- one hundred and twenty thousand seven hundred and twenty-first
- Expanded form
- 100,000 + 20,000 + 700 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 1 | 100,000 |
| ten thousands | 2 | 20,000 |
| thousands | 0 | 0 |
| hundreds | 7 | 700 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Prime
- Factors
- 1 and 120,721 (2 factors)
- First 10 multiples
- 120,721, 241,442, 362,163, 482,884, 603,605, 724,326, 845,047, 965,768, 1,086,489, 1,207,210
- Square
- 120,721 × 120,721 = 14,573,559,841
- Square root
- ≈ 347.45
- Sum of the digits
- 1 + 2 + 0 + 7 + 2 + 1 = 13
- Rounded to the nearest 10
- 120,720
- Rounded to the nearest 100
- 120,700
- Rounded to the nearest 1000
- 121,000
- Number before
- 120,720
- Number after
- 120,722
- In binary
11101011110010001
Quick check
What number comes just after 120,721?
Show the answer
120,722
Is 120,721 even or odd?
Show the answer
Odd
What is 120,721 + 10?
Show the answer
120,731
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 120,721 in words?
120,721 is written "one hundred and twenty thousand seven hundred and twenty-one".
Is 120,721 a prime number?
Yes. 120,721 is a prime number: its only factors are 1 and 120,721.
What are the factors of 120,721?
The factors of 120,721 are 1 and 120,721.