22521325200 has 240 divisors, whose sum is σ = 78893825472. Its totient is φ = 5446400000.

The previous prime is 22521325193. The next prime is 22521325201. The reversal of 22521325200 is 252312522.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (22521325201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6083350 + ... + 6087050.

Almost surely, 2^22521325200 is an apocalyptic number.

22521325200 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 22521325200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39446912736).

22521325200 is an abundant number, since it is smaller than the sum of its proper divisors (56372500272).

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

22521325200 is a wasteful number, since it uses less digits than its factorization.

22521325200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4194 (or 4183 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 22521325200 its reverse (252312522), we get a palindrome (22773637722).

The spelling of 22521325200 in words is "twenty-two billion, five hundred twenty-one million, three hundred twenty-five thousand, two hundred".