2121110012012 has 12 divisors (see below), whose sum is σ = 3712047605280. Its totient is φ = 1060524981936.

The previous prime is 2121110011997. The next prime is 2121110012023. The reversal of 2121110012012 is 2102100111212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7346687 + ... + 7629942.

It is an arithmetic number, because the mean of its divisors is an integer number (309337300440).

Almost surely, 2^{2121110012012} is an apocalyptic number.

It is an amenable number.

2121110012012 is a deficient number, since it is larger than the sum of its proper divisors (1590937593268).

2121110012012 is a wasteful number, since it uses less digits than its factorization.

2121110012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15012040 (or 15012038 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2121110012012 its reverse (2102100111212), we get a palindrome (4223210123224).

The spelling of 2121110012012 in words is "two trillion, one hundred twenty-one billion, one hundred ten million, twelve thousand, twelve".