21122442325200 has 240 divisors, whose sum is σ = 73148352739520. Its totient is φ = 5191974236160.

The previous prime is 21122442325199. The next prime is 21122442325217. The reversal of 21122442325200 is 252324422112.

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 (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11675629 + ... + 13362828.

Almost surely, 2^{21122442325200} is an apocalyptic number.

21122442325200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21122442325200 is an abundant number, since it is smaller than the sum of its proper divisors (52025910414320).

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

21122442325200 is a wasteful number, since it uses less digits than its factorization.

21122442325200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25038534 (or 25038523 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 21122442325200 its reverse (252324422112), we get a palindrome (21374766747312).

The spelling of 21122442325200 in words is "twenty-one trillion, one hundred twenty-two billion, four hundred forty-two million, three hundred twenty-five thousand, two hundred".