22112020102212 has 36 divisors (see below), whose sum is σ = 59182171451676. Its totient is φ = 6937104345600.

The previous prime is 22112020102187. The next prime is 22112020102217. The reversal of 22112020102212 is 21220102021122.

It is a happy number.

22112020102212 is a `hidden beast` number, since 221 + 1 + 20 + 201 + 0 + 221 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10834472563776 + 11277547538436 = 3291576^2 + 3358206^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22112020102217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18065375289 + ... + 18065376512.

It is an arithmetic number, because the mean of its divisors is an integer number (1643949206991).

Almost surely, 2^{22112020102212} is an apocalyptic number.

It is an amenable number.

22112020102212 is an abundant number, since it is smaller than the sum of its proper divisors (37070151349464).

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

22112020102212 is a wasteful number, since it uses less digits than its factorization.

22112020102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36130751828 (or 36130751823 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22112020102212 its reverse (21220102021122), we get a palindrome (43332122123334).

The spelling of 22112020102212 in words is "twenty-two trillion, one hundred twelve billion, twenty million, one hundred two thousand, two hundred twelve".