22112543520 has 288 divisors, whose sum is σ = 79628028480. Its totient is φ = 5572454400.

The previous prime is 22112543449. The next prime is 22112543527. The reversal of 22112543520 is 2534521122.

22112543520 is a `hidden beast` number, since 2 + 2 + 112 + 543 + 5 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is not an unprimeable number, because it can be changed into a prime (22112543527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15238795 + ... + 15240245.

It is an arithmetic number, because the mean of its divisors is an integer number (276486210).

Almost surely, 2^22112543520 is an apocalyptic number.

22112543520 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 22112543520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39814014240).

22112543520 is an abundant number, since it is smaller than the sum of its proper divisors (57515484960).

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

22112543520 is a wasteful number, since it uses less digits than its factorization.

22112543520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048 (or 2037 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The spelling of 22112543520 in words is "twenty-two billion, one hundred twelve million, five hundred forty-three thousand, five hundred twenty".