22911985120 has 48 divisors (see below), whose sum is σ = 54264703248. Its totient is φ = 9141913600.

The previous prime is 22911985097. The next prime is 22911985123. The reversal of 22911985120 is 2158911922.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22911985123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114394 + ... + 242713.

It is an arithmetic number, because the mean of its divisors is an integer number (1130514651).

Almost surely, 2^22911985120 is an apocalyptic number.

22911985120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22911985120 is an abundant number, since it is smaller than the sum of its proper divisors (31352718128).

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

22911985120 is a wasteful number, since it uses less digits than its factorization.

22911985120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357523 (or 357515 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 40.

The spelling of 22911985120 in words is "twenty-two billion, nine hundred eleven million, nine hundred eighty-five thousand, one hundred twenty".