12017102120 has 64 divisors (see below), whose sum is σ = 28645002000. Its totient is φ = 4521553920.

The previous prime is 12017102093. The next prime is 12017102161. The reversal of 12017102120 is 2120171021.

It can be written as a sum of positive squares in 8 ways, for example, as 9770531716 + 2246570404 = 98846^2 + 47398^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1588106 + ... + 1595654.

Almost surely, 2^12017102120 is an apocalyptic number.

12017102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12017102120 is an abundant number, since it is smaller than the sum of its proper divisors (16627899880).

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

12017102120 is a wasteful number, since it uses less digits than its factorization.

12017102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9918 (or 9914 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 12017102120 its reverse (2120171021), we get a palindrome (14137273141).

The spelling of 12017102120 in words is "twelve billion, seventeen million, one hundred two thousand, one hundred twenty".