22199804400 has 120 divisors (see below), whose sum is σ = 71256689280. Its totient is φ = 5908017920.

The previous prime is 22199804377. The next prime is 22199804449. The reversal of 22199804400 is 440899122.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 585211 + ... + 621989.

It is an arithmetic number, because the mean of its divisors is an integer number (593805744).

Almost surely, 2^22199804400 is an apocalyptic number.

22199804400 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 22199804400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35628344640).

22199804400 is an abundant number, since it is smaller than the sum of its proper divisors (49056884880).

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

22199804400 is a wasteful number, since it uses less digits than its factorization.

22199804400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37303 (or 37292 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The spelling of 22199804400 in words is "twenty-two billion, one hundred ninety-nine million, eight hundred four thousand, four hundred".