22542055212 has 48 divisors (see below), whose sum is σ = 53820652032. Its totient is φ = 7339988160.

The previous prime is 22542055187. The next prime is 22542055219. The reversal of 22542055212 is 21255024522.

It is a self number, because there is not a number n which added to its sum of digits gives 22542055212.

It is not an unprimeable number, because it can be changed into a prime (22542055219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256762 + ... + 333182.

It is an arithmetic number, because the mean of its divisors is an integer number (1121263584).

Almost surely, 2^22542055212 is an apocalyptic number.

It is an amenable number.

22542055212 is an abundant number, since it is smaller than the sum of its proper divisors (31278596820).

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

22542055212 is a wasteful number, since it uses less digits than its factorization.

22542055212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76998 (or 76996 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 22542055212 its reverse (21255024522), we get a palindrome (43797079734).

The spelling of 22542055212 in words is "twenty-two billion, five hundred forty-two million, fifty-five thousand, two hundred twelve".