120021107 has 12 divisors (see below), whose sum is σ = 126813960. Its totient is φ = 113570688.

The previous prime is 120021101. The next prime is 120021137. The reversal of 120021107 is 701120021.

It is not a de Polignac number, because 120021107 - 2⁴ = 120021091 is a prime.

It is a super-2 number, since 2×120021107² = 28810132251010898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120021091 and 120021100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50144 + ... + 52482.

It is an arithmetic number, because the mean of its divisors is an integer number (10567830).

Almost surely, 2^120021107 is an apocalyptic number.

120021107 is a deficient number, since it is larger than the sum of its proper divisors (6792853).

120021107 is an equidigital number, since it uses as much as digits as its factorization.

120021107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2482 (or 2459 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 120021107 is about 10955.4145060787. The cubic root of 120021107 is about 493.2713322475.

Adding to 120021107 its reverse (701120021), we get a palindrome (821141128).

The spelling of 120021107 in words is "one hundred twenty million, twenty-one thousand, one hundred seven".