120012100 has 36 divisors (see below), whose sum is σ = 280462084. Its totient is φ = 44311680.

The previous prime is 120012089. The next prime is 120012131. The reversal of 120012100 is 1210021.

It can be written as a sum of positive squares in 6 ways, for example, as 1811716 + 118200384 = 1346^2 + 10872^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44859 + ... + 47458.

Almost surely, 2^120012100 is an apocalyptic number.

120012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120012100 is an abundant number, since it is smaller than the sum of its proper divisors (160449984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120012100 is a wasteful number, since it uses less digits than its factorization.

120012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92344 (or 92337 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 120012100 is about 10955.0034230939. The cubic root of 120012100 is about 493.2589927345.

Adding to 120012100 its reverse (1210021), we get a palindrome (121222121).

The spelling of 120012100 in words is "one hundred twenty million, twelve thousand, one hundred".