23221562112 has 216 divisors, whose sum is σ = 79353770496. Its totient is φ = 6634607616.

The previous prime is 23221562087. The next prime is 23221562129. The reversal of 23221562112 is 21126512232.

23221562112 is a `hidden beast` number, since 2 + 3 + 2 + 21 + 5 + 621 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (216).

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 408793 + ... + 462119.

Almost surely, 2^23221562112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23221562112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39676885248).

23221562112 is an abundant number, since it is smaller than the sum of its proper divisors (56132208384).

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

23221562112 is an frugal number, since it uses more digits than its factorization.

23221562112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53365 (or 53339 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The spelling of 23221562112 in words is "twenty-three billion, two hundred twenty-one million, five hundred sixty-two thousand, one hundred twelve".