22112210244 has 12 divisors (see below), whose sum is σ = 51595157264. Its totient is φ = 7370736744.

The previous prime is 22112210213. The next prime is 22112210249. The reversal of 22112210244 is 44201221122.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 22112210244.

It is not an unprimeable number, because it can be changed into a prime (22112210249) 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, 921342082 + ... + 921342105.

Almost surely, 2^22112210244 is an apocalyptic number.

It is an amenable number.

22112210244 is an abundant number, since it is smaller than the sum of its proper divisors (29482947020).

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

22112210244 is a wasteful number, since it uses less digits than its factorization.

22112210244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842684194 (or 1842684192 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22112210244 its reverse (44201221122), we get a palindrome (66313431366).

The spelling of 22112210244 in words is "twenty-two billion, one hundred twelve million, two hundred ten thousand, two hundred forty-four".