1,20,721 in words
1,20,721
one lakh twenty thousand seven hundred and twenty-one
1,20,721 is written one lakh twenty thousand seven hundred and twenty-one.
Ways to write it
- International system
- one hundred and twenty thousand seven hundred and twenty-one
- Indian system
- one lakh twenty thousand seven hundred and twenty-one
- As an ordinal
- one lakh twenty thousand seven hundred and twenty-first
- Expanded form
- 1,00,000 + 20,000 + 700 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| lakhs | 1 | 1,00,000 |
| ten thousands | 2 | 20,000 |
| thousands | 0 | 0 |
| hundreds | 7 | 700 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Prime
- Factors
- 1 and 1,20,721 (2 factors)
- First 10 multiples
- 1,20,721, 2,41,442, 3,62,163, 4,82,884, 6,03,605, 7,24,326, 8,45,047, 9,65,768, 10,86,489, 12,07,210
- Square
- 1,20,721 × 1,20,721 = 14,57,35,59,841
- Square root
- ≈ 347.45
- Sum of the digits
- 1 + 2 + 0 + 7 + 2 + 1 = 13
- Rounded to the nearest 10
- 1,20,720
- Rounded to the nearest 100
- 1,20,700
- Rounded to the nearest 1000
- 1,21,000
- Number before
- 1,20,720
- Number after
- 1,20,722
- In binary
11101011110010001
Quick check
What number comes just after 1,20,721?
Show the answer
1,20,722
Is 1,20,721 even or odd?
Show the answer
Odd
What is 1,20,721 + 10?
Show the answer
1,20,731
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 1,20,721 in words?
1,20,721 is written "one lakh twenty thousand seven hundred and twenty-one".
Is 1,20,721 a prime number?
Yes. 1,20,721 is a prime number: its only factors are 1 and 1,20,721.
What are the factors of 1,20,721?
The factors of 1,20,721 are 1 and 1,20,721.