22111220211112 has 32 divisors (see below), whose sum is σ = 41504842177920. Its totient is φ = 11043268810560.

The previous prime is 22111220211071. The next prime is 22111220211187. The reversal of 22111220211112 is 21111202211122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22111220211112.

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, 26879437 + ... + 27689827.

It is an arithmetic number, because the mean of its divisors is an integer number (1297026318060).

Almost surely, 2^{22111220211112} is an apocalyptic number.

It is an amenable number.

22111220211112 is a deficient number, since it is larger than the sum of its proper divisors (19393621966808).

22111220211112 is a wasteful number, since it uses less digits than its factorization.

22111220211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814201 (or 814197 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 22111220211112 its reverse (21111202211122), we get a palindrome (43222422422234).

The spelling of 22111220211112 in words is "twenty-two trillion, one hundred eleven billion, two hundred twenty million, two hundred eleven thousand, one hundred twelve".