12100112122122 has 24 divisors (see below), whose sum is σ = 26218113775776. Its totient is φ = 4033185449256.

The previous prime is 12100112122099. The next prime is 12100112122193. The reversal of 12100112122122 is 22122121100121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12100112122095 and 12100112122104.

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, 15035118 + ... + 15819449.

It is an arithmetic number, because the mean of its divisors is an integer number (1092421407324).

Almost surely, 2^{12100112122122} is an apocalyptic number.

12100112122122 is an abundant number, since it is smaller than the sum of its proper divisors (14118001653654).

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

12100112122122 is a wasteful number, since it uses less digits than its factorization.

12100112122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30876362 (or 30876359 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12100112122122 its reverse (22122121100121), we get a palindrome (34222233222243).

The spelling of 12100112122122 in words is "twelve trillion, one hundred billion, one hundred twelve million, one hundred twenty-two thousand, one hundred twenty-two".