2100122120012 has 24 divisors (see below), whose sum is σ = 4302689223840. Its totient is φ = 878099840640.

The previous prime is 2100122119987. The next prime is 2100122120069. The reversal of 2100122120012 is 2100212210012.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 914686187 + ... + 914688482.

It is an arithmetic number, because the mean of its divisors is an integer number (179278717660).

Almost surely, 2^{2100122120012} is an apocalyptic number.

It is an amenable number.

2100122120012 is an abundant number, since it is smaller than the sum of its proper divisors (2202567103828).

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

2100122120012 is a wasteful number, since it uses less digits than its factorization.

2100122120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829374721 (or 1829374719 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2100122120012 its reverse (2100212210012), we get a palindrome (4200334330024).

The spelling of 2100122120012 in words is "two trillion, one hundred billion, one hundred twenty-two million, one hundred twenty thousand, twelve".