22142535520 has 72 divisors (see below), whose sum is σ = 60852453984. Its totient is φ = 7591723776.

The previous prime is 22142535497. The next prime is 22142535589. The reversal of 22142535520 is 2553524122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1404312 + ... + 1419991.

It is an arithmetic number, because the mean of its divisors is an integer number (845172972).

Almost surely, 2^22142535520 is an apocalyptic number.

22142535520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22142535520 is an abundant number, since it is smaller than the sum of its proper divisors (38709918464).

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

22142535520 is a wasteful number, since it uses less digits than its factorization.

22142535520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824332 (or 2824317 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 22142535520 in words is "twenty-two billion, one hundred forty-two million, five hundred thirty-five thousand, five hundred twenty".