2100112012012 has 24 divisors (see below), whose sum is σ = 4201644623904. Its totient is φ = 899743590912.

The previous prime is 2100112011971. The next prime is 2100112012043. The reversal of 2100112012012 is 2102102110012.

It is a junction number, because it is equal to n+sod(n) for n = 2100112011983 and 2100112012001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12599653 + ... + 12765244.

It is an arithmetic number, because the mean of its divisors is an integer number (175068525996).

Almost surely, 2^{2100112012012} is an apocalyptic number.

It is an amenable number.

2100112012012 is an abundant number, since it is smaller than the sum of its proper divisors (2101532611892).

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

2100112012012 is a wasteful number, since it uses less digits than its factorization.

2100112012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25367865 (or 25367863 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2100112012012 its reverse (2102102110012), we get a palindrome (4202214122024).

The spelling of 2100112012012 in words is "two trillion, one hundred billion, one hundred twelve million, twelve thousand, twelve".