22004521200 has 360 divisors, whose sum is σ = 81375604128. Its totient is φ = 5487083520.

The previous prime is 22004521157. The next prime is 22004521207. The reversal of 22004521200 is 212540022.

22004521200 is a `hidden beast` number, since 2 + 200 + 452 + 12 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22004521207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10219324 + ... + 10221476.

Almost surely, 2^22004521200 is an apocalyptic number.

22004521200 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 22004521200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40687802064).

22004521200 is an abundant number, since it is smaller than the sum of its proper divisors (59371082928).

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

22004521200 is a wasteful number, since it uses less digits than its factorization.

22004521200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2361 (or 2347 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The spelling of 22004521200 in words is "twenty-two billion, four million, five hundred twenty-one thousand, two hundred".