22100221011212 has 12 divisors (see below), whose sum is σ = 38682777478296. Its totient is φ = 11047998874560.

The previous prime is 22100221011199. The next prime is 22100221011259. The reversal of 22100221011212 is 21211012200122.

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, 527884214 + ... + 527926077.

It is an arithmetic number, because the mean of its divisors is an integer number (3223564789858).

Almost surely, 2^{22100221011212} is an apocalyptic number.

It is an amenable number.

22100221011212 is a deficient number, since it is larger than the sum of its proper divisors (16582556467084).

22100221011212 is a wasteful number, since it uses less digits than its factorization.

22100221011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055815528 (or 1055815526 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22100221011212 its reverse (21211012200122), we get a palindrome (43311233211334).

The spelling of 22100221011212 in words is "twenty-two trillion, one hundred billion, two hundred twenty-one million, eleven thousand, two hundred twelve".