2122111222012 has 12 divisors (see below), whose sum is σ = 3792709418400. Its totient is φ = 1038479959616.

The previous prime is 2122111222003. The next prime is 2122111222027. The reversal of 2122111222012 is 2102221112212.

It is a congruent number.

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, 5643912637 + ... + 5643913012.

It is an arithmetic number, because the mean of its divisors is an integer number (316059118200).

Almost surely, 2^{2122111222012} is an apocalyptic number.

It is an amenable number.

2122111222012 is a deficient number, since it is larger than the sum of its proper divisors (1670598196388).

2122111222012 is a wasteful number, since it uses less digits than its factorization.

2122111222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11287825700 (or 11287825698 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2122111222012 its reverse (2102221112212), we get a palindrome (4224332334224).

The spelling of 2122111222012 in words is "two trillion, one hundred twenty-two billion, one hundred eleven million, two hundred twenty-two thousand, twelve".