22352123500 has 96 divisors (see below), whose sum is σ = 55841385600. Its totient is φ = 7656652800.

The previous prime is 22352123473. The next prime is 22352123501. The reversal of 22352123500 is 532125322.

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

It is not an unprimeable number, because it can be changed into a prime (22352123501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5209356 + ... + 5213644.

It is an arithmetic number, because the mean of its divisors is an integer number (581681100).

Almost surely, 2^22352123500 is an apocalyptic number.

22352123500 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 22352123500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27920692800).

22352123500 is an abundant number, since it is smaller than the sum of its proper divisors (33489262100).

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

22352123500 is a wasteful number, since it uses less digits than its factorization.

22352123500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5804 (or 5792 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 22352123500 its reverse (532125322), we get a palindrome (22884248822).

The spelling of 22352123500 in words is "twenty-two billion, three hundred fifty-two million, one hundred twenty-three thousand, five hundred".