22231500240 has 80 divisors (see below), whose sum is σ = 72544910400. Its totient is φ = 5616377856.

The previous prime is 22231500229. The next prime is 22231500323. The reversal of 22231500240 is 4200513222.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×22231500240² (a number of 21 digits) contains 22 as substring.

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, 2433105 + ... + 2442224.

It is an arithmetic number, because the mean of its divisors is an integer number (906811380).

Almost surely, 2^22231500240 is an apocalyptic number.

22231500240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22231500240 is an abundant number, since it is smaller than the sum of its proper divisors (50313410160).

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

22231500240 is a wasteful number, since it uses less digits than its factorization.

22231500240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4875364 (or 4875358 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The spelling of 22231500240 in words is "twenty-two billion, two hundred thirty-one million, five hundred thousand, two hundred forty".