22152125500 has 48 divisors (see below), whose sum is σ = 48588138144. Its totient is φ = 8822774400.

The previous prime is 22152125461. The next prime is 22152125531. The reversal of 22152125500 is 552125122.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21427 + ... + 211573.

It is an arithmetic number, because the mean of its divisors is an integer number (1012252878).

Almost surely, 2^22152125500 is an apocalyptic number.

22152125500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22152125500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24294069072).

22152125500 is an abundant number, since it is smaller than the sum of its proper divisors (26436012644).

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

22152125500 is a wasteful number, since it uses less digits than its factorization.

22152125500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190399 (or 190387 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The spelling of 22152125500 in words is "twenty-two billion, one hundred fifty-two million, one hundred twenty-five thousand, five hundred".