121,997 in words
121,997
one hundred twenty-one thousand nine hundred ninety-seven
121,997 is written one hundred twenty-one thousand nine hundred ninety-seven.
Ways to write it
- As an ordinal
- one hundred twenty-one thousand nine hundred ninety-seventh
- Expanded form
- 100,000 + 20,000 + 1,000 + 900 + 90 + 7
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 1 | 100,000 |
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 9 | 900 |
| tens | 9 | 90 |
| ones | 7 | 7 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Prime
- Factors
- 1 and 121,997 (2 factors)
- First 10 multiples
- 121,997, 243,994, 365,991, 487,988, 609,985, 731,982, 853,979, 975,976, 1,097,973, 1,219,970
- Square
- 121,997 × 121,997 = 14,883,268,009
- Square root
- ≈ 349.28
- Sum of the digits
- 1 + 2 + 1 + 9 + 9 + 7 = 29
- Rounded to the nearest 10
- 122,000
- Rounded to the nearest 100
- 122,000
- Rounded to the nearest 1000
- 122,000
- Number before
- 121,996
- Number after
- 121,998
- In binary
11101110010001101
Quick check
What number comes just after 121,997?
Show the answer
121,998
Is 121,997 even or odd?
Show the answer
Odd
What is 121,997 + 10?
Show the answer
122,007
Practice 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 121,997 in words?
121,997 is written "one hundred twenty-one thousand nine hundred ninety-seven".
Is 121,997 a prime number?
Yes. 121,997 is a prime number: its only factors are 1 and 121,997.
What are the factors of 121,997?
The factors of 121,997 are 1 and 121,997.