3,221 in words
3,221
three thousand two hundred and twenty-one
3,221 is written three thousand two hundred and twenty-one.
Ways to write it
- As an ordinal
- three thousand two hundred and twenty-first
- Roman numeral
- MMMCCXXI
- Expanded form
- 3,000 + 200 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| thousands | 3 | 3,000 |
| hundreds | 2 | 200 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Prime
- Factors
- 1 and 3,221 (2 factors)
- First 10 multiples
- 3,221, 6,442, 9,663, 12,884, 16,105, 19,326, 22,547, 25,768, 28,989, 32,210
- Square
- 3,221 × 3,221 = 10,374,841
- Square root
- ≈ 56.75
- Sum of the digits
- 3 + 2 + 2 + 1 = 8
- Rounded to the nearest 10
- 3,220
- Rounded to the nearest 100
- 3,200
- Rounded to the nearest 1000
- 3,000
- Number before
- 3,220
- Number after
- 3,222
- In binary
110010010101
Quick check
What number comes just after 3,221?
Show the answer
3,222
Is 3,221 even or odd?
Show the answer
Odd
What is 3,221 + 10?
Show the answer
3,231
Practise with a game
Factors, Multiples & Primes
Multiples, factors, prime numbers, square numbers and prime factors.
Roman Numerals
Read and write Roman numerals from I to 3,999.Frequently asked questions
How do you write 3,221 in words?
3,221 is written "three thousand two hundred and twenty-one".
Is 3,221 a prime number?
Yes. 3,221 is a prime number: its only factors are 1 and 3,221.
What are the factors of 3,221?
The factors of 3,221 are 1 and 3,221.
How do you write 3,221 in Roman numerals?
3,221 in Roman numerals is MMMCCXXI.