22112222011012 has 96 divisors (see below), whose sum is σ = 45001599874560. Its totient is φ = 9311499141120.

The previous prime is 22112222011001. The next prime is 22112222011057. The reversal of 22112222011012 is 21011022221122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2647215028 + ... + 2647223380.

It is an arithmetic number, because the mean of its divisors is an integer number (468766665360).

Almost surely, 2^{22112222011012} is an apocalyptic number.

It is an amenable number.

22112222011012 is an abundant number, since it is smaller than the sum of its proper divisors (22889377863548).

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

22112222011012 is a wasteful number, since it uses less digits than its factorization.

22112222011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14981 (or 14979 counting only the distinct ones).

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

Adding to 22112222011012 its reverse (21011022221122), we get a palindrome (43123244232134).

The spelling of 22112222011012 in words is "twenty-two trillion, one hundred twelve billion, two hundred twenty-two million, eleven thousand, twelve".