22110220211212 has 24 divisors (see below), whose sum is σ = 44513291029760. Its totient is φ = 9413054960400.

The previous prime is 22110220211201. The next prime is 22110220211227. The reversal of 22110220211212 is 21211202201122.

It is a self number, because there is not a number n which added to its sum of digits gives 22110220211212.

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, 2614733262 + ... + 2614741717.

Almost surely, 2^{22110220211212} is an apocalyptic number.

It is an amenable number.

22110220211212 is an abundant number, since it is smaller than the sum of its proper divisors (22403070818548).

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

22110220211212 is a wasteful number, since it uses less digits than its factorization.

22110220211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5229475141 (or 5229475139 counting only the distinct ones).

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

Adding to 22110220211212 its reverse (21211202201122), we get a palindrome (43321422412334).

The spelling of 22110220211212 in words is "twenty-two trillion, one hundred ten billion, two hundred twenty million, two hundred eleven thousand, two hundred twelve".