22204002255200 has 144 divisors (see below), whose sum is σ = 56565938610720. Its totient is φ = 8494895185920.

The previous prime is 22204002255173. The next prime is 22204002255209. The reversal of 22204002255200 is 255220040222.

It is a super-2 number, since 2×22204002255200² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22204002255200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22204002255209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 391321232 + ... + 391377968.

It is an arithmetic number, because the mean of its divisors is an integer number (392819018130).

Almost surely, 2^{22204002255200} is an apocalyptic number.

22204002255200 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 22204002255200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28282969305360).

22204002255200 is an abundant number, since it is smaller than the sum of its proper divisors (34361936355520).

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

22204002255200 is a wasteful number, since it uses less digits than its factorization.

22204002255200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78049 (or 78036 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

Adding to 22204002255200 its reverse (255220040222), we get a palindrome (22459222295422).

The spelling of 22204002255200 in words is "twenty-two trillion, two hundred four billion, two million, two hundred fifty-five thousand, two hundred".