12100120 has 32 divisors (see below), whose sum is σ = 27331920. Its totient is φ = 4821120.

The previous prime is 12100111. The next prime is 12100159. The reversal of 12100120 is 2100121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14515 + ... + 15325.

Almost surely, 2^12100120 is an apocalyptic number.

12100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100120 is an abundant number, since it is smaller than the sum of its proper divisors (15231800).

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

12100120 is a wasteful number, since it uses less digits than its factorization.

12100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195 (or 1191 counting only the distinct ones).

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

The square root of 12100120 is about 3478.5226749297. The cubic root of 12100120 is about 229.5778013964.

Adding to 12100120 its reverse (2100121), we get a palindrome (14200241).

Subtracting from 12100120 its reverse (2100121), we obtain a palindrome (9999999).

The spelling of 12100120 in words is "twelve million, one hundred thousand, one hundred twenty".