22115757140 has 48 divisors (see below), whose sum is σ = 46847711232. Its totient is φ = 8769350016.

The previous prime is 22115757137. The next prime is 22115757163. The reversal of 22115757140 is 4175751122.

It is a self number, because there is not a number n which added to its sum of digits gives 22115757140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3865562 + ... + 3871278.

It is an arithmetic number, because the mean of its divisors is an integer number (975993984).

Almost surely, 2^22115757140 is an apocalyptic number.

22115757140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22115757140 is an abundant number, since it is smaller than the sum of its proper divisors (24731954092).

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

22115757140 is a wasteful number, since it uses less digits than its factorization.

22115757140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7376 (or 7374 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 35.

The spelling of 22115757140 in words is "twenty-two billion, one hundred fifteen million, seven hundred fifty-seven thousand, one hundred forty".