22063012500 has 72 divisors (see below), whose sum is σ = 64346444064. Its totient is φ = 5883460000.

The previous prime is 22063012493. The next prime is 22063012529. The reversal of 22063012500 is 521036022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 256674 + ... + 331673.

It is an arithmetic number, because the mean of its divisors is an integer number (893700612).

Almost surely, 2^22063012500 is an apocalyptic number.

22063012500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22063012500 is an abundant number, since it is smaller than the sum of its proper divisors (42283431564).

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

22063012500 is an equidigital number, since it uses as much as digits as its factorization.

22063012500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588379 (or 588357 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 22063012500 its reverse (521036022), we get a palindrome (22584048522).

The spelling of 22063012500 in words is "twenty-two billion, sixty-three million, twelve thousand, five hundred".