72,221 in words
72,221
seventy-two thousand two hundred and twenty-one
72,221 is written seventy-two thousand two hundred and twenty-one.
Ways to write it
- As an ordinal
- seventy-two thousand two hundred and twenty-first
- Expanded form
- 70,000 + 2,000 + 200 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 7 | 70,000 |
| thousands | 2 | 2,000 |
| hundreds | 2 | 200 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Prime
- Factors
- 1 and 72,221 (2 factors)
- First 10 multiples
- 72,221, 144,442, 216,663, 288,884, 361,105, 433,326, 505,547, 577,768, 649,989, 722,210
- Square
- 72,221 × 72,221 = 5,215,872,841
- Square root
- ≈ 268.74
- Sum of the digits
- 7 + 2 + 2 + 2 + 1 = 14
- Rounded to the nearest 10
- 72,220
- Rounded to the nearest 100
- 72,200
- Rounded to the nearest 1000
- 72,000
- Number before
- 72,220
- Number after
- 72,222
- In binary
10001101000011101
Quick check
What number comes just after 72,221?
Show the answer
72,222
Is 72,221 even or odd?
Show the answer
Odd
What is 72,221 + 10?
Show the answer
72,231
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 72,221 in words?
72,221 is written "seventy-two thousand two hundred and twenty-one".
Is 72,221 a prime number?
Yes. 72,221 is a prime number: its only factors are 1 and 72,221.
What are the factors of 72,221?
The factors of 72,221 are 1 and 72,221.