23221023112 has 64 divisors (see below), whose sum is σ = 52918945920. Its totient is φ = 9325114368.

The previous prime is 23221023037. The next prime is 23221023121. The reversal of 23221023112 is 21132012232.

It is a self number, because there is not a number n which added to its sum of digits gives 23221023112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162378 + ... + 269830.

It is an arithmetic number, because the mean of its divisors is an integer number (826858530).

Almost surely, 2^23221023112 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 23221023112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26459472960).

23221023112 is an abundant number, since it is smaller than the sum of its proper divisors (29697922808).

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

23221023112 is a wasteful number, since it uses less digits than its factorization.

23221023112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107710 (or 107706 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 23221023112 its reverse (21132012232), we get a palindrome (44353035344).

The spelling of 23221023112 in words is "twenty-three billion, two hundred twenty-one million, twenty-three thousand, one hundred twelve".