12,221 in words
12,221
twelve thousand two hundred and twenty-one
12,221 is written twelve thousand two hundred and twenty-one.
Ways to write it
- As an ordinal
- twelve thousand two hundred and twenty-first
- Expanded form
- 10,000 + 2,000 + 200 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 1 | 10,000 |
| thousands | 2 | 2,000 |
| hundreds | 2 | 200 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 11, 101, 121, 1,111 and 12,221 (6 factors)
- First 10 multiples
- 12,221, 24,442, 36,663, 48,884, 61,105, 73,326, 85,547, 97,768, 109,989, 122,210
- Square
- 12,221 × 12,221 = 149,352,841
- Square root
- ≈ 110.55
- Sum of the digits
- 1 + 2 + 2 + 2 + 1 = 8
- Rounded to the nearest 10
- 12,220
- Rounded to the nearest 100
- 12,200
- Rounded to the nearest 1000
- 12,000
- Number before
- 12,220
- Number after
- 12,222
- In binary
10111110111101
Quick check
What number comes just after 12,221?
Show the answer
12,222
Is 12,221 even or odd?
Show the answer
Odd
What is 12,221 + 10?
Show the answer
12,231
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 12,221 in words?
12,221 is written "twelve thousand two hundred and twenty-one".
Is 12,221 a prime number?
No. 12,221 is a composite number, because it has more than two factors.
What are the factors of 12,221?
The factors of 12,221 are 1, 11, 101, 121, 1,111 and 12,221.