121,221 in words
121,221
one hundred twenty-one thousand two hundred twenty-one
121,221 is written one hundred twenty-one thousand two hundred twenty-one.
Ways to write it
- As an ordinal
- one hundred twenty-one thousand two hundred twenty-first
- Expanded form
- 100,000 + 20,000 + 1,000 + 200 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 1 | 100,000 |
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 2 | 200 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 9, 13,469, 40,407 and 121,221 (6 factors)
- First 10 multiples
- 121,221, 242,442, 363,663, 484,884, 606,105, 727,326, 848,547, 969,768, 1,090,989, 1,212,210
- Square
- 121,221 × 121,221 = 14,694,530,841
- Square root
- ≈ 348.17
- Sum of the digits
- 1 + 2 + 1 + 2 + 2 + 1 = 9
- Rounded to the nearest 10
- 121,220
- Rounded to the nearest 100
- 121,200
- Rounded to the nearest 1000
- 121,000
- Number before
- 121,220
- Number after
- 121,222
- In binary
11101100110000101
Quick check
What number comes just after 121,221?
Show the answer
121,222
Is 121,221 even or odd?
Show the answer
Odd
What is 121,221 + 10?
Show the answer
121,231
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 121,221 in words?
121,221 is written "one hundred twenty-one thousand two hundred twenty-one".
Is 121,221 a prime number?
No. 121,221 is a composite number, because it has more than two factors.
What are the factors of 121,221?
The factors of 121,221 are 1, 3, 9, 13,469, 40,407 and 121,221.