22115245524 has 12 divisors (see below), whose sum is σ = 51602239584. Its totient is φ = 7371748504.

The previous prime is 22115245519. The next prime is 22115245541. The reversal of 22115245524 is 42554251122.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 921468552 + ... + 921468575.

It is an arithmetic number, because the mean of its divisors is an integer number (4300186632).

Almost surely, 2^22115245524 is an apocalyptic number.

It is an amenable number.

22115245524 is an abundant number, since it is smaller than the sum of its proper divisors (29486994060).

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

22115245524 is a wasteful number, since it uses less digits than its factorization.

22115245524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842937134 (or 1842937132 counting only the distinct ones).

The product of its digits is 32000, while the sum is 33.

Adding to 22115245524 its reverse (42554251122), we get a palindrome (64669496646).

The spelling of 22115245524 in words is "twenty-two billion, one hundred fifteen million, two hundred forty-five thousand, five hundred twenty-four".