22121113244 has 12 divisors (see below), whose sum is σ = 38713005744. Its totient is φ = 11060254464.

The previous prime is 22121113219. The next prime is 22121113247. The reversal of 22121113244 is 44231112122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121113247) 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, 204689 + ... + 293495.

It is an arithmetic number, because the mean of its divisors is an integer number (3226083812).

Almost surely, 2^22121113244 is an apocalyptic number.

It is an amenable number.

22121113244 is a deficient number, since it is larger than the sum of its proper divisors (16591892500).

22121113244 is a wasteful number, since it uses less digits than its factorization.

22121113244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151084 (or 151082 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

Adding to 22121113244 its reverse (44231112122), we get a palindrome (66352225366).

The spelling of 22121113244 in words is "twenty-two billion, one hundred twenty-one million, one hundred thirteen thousand, two hundred forty-four".