22100111222212 has 12 divisors (see below), whose sum is σ = 38682977969020. Its totient is φ = 11047831802496.

The previous prime is 22100111222159. The next prime is 22100111222213. The reversal of 22100111222212 is 21222211100122.

22100111222212 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8235614290176 + 13864496932036 = 2869776^2 + 3723506^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22100111222212.

It is not an unprimeable number, because it can be changed into a prime (22100111222213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555929793 + ... + 555969544.

Almost surely, 2^{22100111222212} is an apocalyptic number.

It is an amenable number.

22100111222212 is a deficient number, since it is larger than the sum of its proper divisors (16582866746808).

22100111222212 is a wasteful number, since it uses less digits than its factorization.

22100111222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111904310 (or 1111904308 counting only the distinct ones).

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

Adding to 22100111222212 its reverse (21222211100122), we get a palindrome (43322322322334).

The spelling of 22100111222212 in words is "twenty-two trillion, one hundred billion, one hundred eleven million, two hundred twenty-two thousand, two hundred twelve".