22228989811200 has 360 divisors, whose sum is σ = 81491714219916. Its totient is φ = 5783150592000.

The previous prime is 22228989811181. The next prime is 22228989811243. The reversal of 22228989811200 is 211898982222.

It is a happy number.

22228989811200 is a `hidden beast` number, since 2 + 2 + 2 + 289 + 89 + 81 + 1 + 200 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 142448875776 + 22086540935424 = 377424^2 + 4699632^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2370030 + ... + 7076370.

Almost surely, 2^{22228989811200} is an apocalyptic number.

22228989811200 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 22228989811200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40745857109958).

22228989811200 is an abundant number, since it is smaller than the sum of its proper divisors (59262724408716).

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

22228989811200 is a wasteful number, since it uses less digits than its factorization.

22228989811200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4706416 (or 4706392 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 54.

The spelling of 22228989811200 in words is "twenty-two trillion, two hundred twenty-eight billion, nine hundred eighty-nine million, eight hundred eleven thousand, two hundred".