1,21,021 in words
1,21,021
one lakh twenty-one thousand and twenty-one
1,21,021 is written one lakh twenty-one thousand and twenty-one.
Ways to write it
- International system
- one hundred and twenty-one thousand and twenty-one
- Indian system
- one lakh twenty-one thousand and twenty-one
- As an ordinal
- one lakh twenty-one thousand and twenty-first
- Expanded form
- 1,00,000 + 20,000 + 1,000 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| lakhs | 1 | 1,00,000 |
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 0 | 0 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Prime
- Factors
- 1 and 1,21,021 (2 factors)
- First 10 multiples
- 1,21,021, 2,42,042, 3,63,063, 4,84,084, 6,05,105, 7,26,126, 8,47,147, 9,68,168, 10,89,189, 12,10,210
- Square
- 1,21,021 × 1,21,021 = 14,64,60,82,441
- Square root
- ≈ 347.88
- Sum of the digits
- 1 + 2 + 1 + 0 + 2 + 1 = 7
- Rounded to the nearest 10
- 1,21,020
- Rounded to the nearest 100
- 1,21,000
- Rounded to the nearest 1000
- 1,21,000
- Number before
- 1,21,020
- Number after
- 1,21,022
- In binary
11101100010111101
Quick check
What number comes just after 1,21,021?
Show the answer
1,21,022
Is 1,21,021 even or odd?
Show the answer
Odd
What is 1,21,021 + 10?
Show the answer
1,21,031
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 1,21,021 in words?
1,21,021 is written "one lakh twenty-one thousand and twenty-one".
Is 1,21,021 a prime number?
Yes. 1,21,021 is a prime number: its only factors are 1 and 1,21,021.
What are the factors of 1,21,021?
The factors of 1,21,021 are 1 and 1,21,021.