2100112020012 has 48 divisors (see below), whose sum is σ = 4954445550432. Its totient is φ = 692323860480.

The previous prime is 2100112019959. The next prime is 2100112020037. The reversal of 2100112020012 is 2100202110012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2100112020012.

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, 1074789 + ... + 2314172.

It is an arithmetic number, because the mean of its divisors is an integer number (103217615634).

Almost surely, 2^{2100112020012} is an apocalyptic number.

It is an amenable number.

2100112020012 is an abundant number, since it is smaller than the sum of its proper divisors (2854333530420).

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

2100112020012 is a wasteful number, since it uses less digits than its factorization.

2100112020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3389538 (or 3389536 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2100112020012 its reverse (2100202110012), we get a palindrome (4200314130024).

The spelling of 2100112020012 in words is "two trillion, one hundred billion, one hundred twelve million, twenty thousand, twelve".