23221655612232 has 384 divisors, whose sum is σ = 77252965816320. Its totient is φ = 5674181990400.

The previous prime is 23221655612219. The next prime is 23221655612237.

23221655612232 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (23221655612237) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 811052557 + ... + 811081187.

It is an arithmetic number, because the mean of its divisors is an integer number (201179598480).

Almost surely, 2^{23221655612232} is an apocalyptic number.

23221655612232 is a gapful number since it is divisible by the number (22) 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 23221655612232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38626482908160).

23221655612232 is an abundant number, since it is smaller than the sum of its proper divisors (54031310204088).

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

23221655612232 is a wasteful number, since it uses less digits than its factorization.

23221655612232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31033 (or 31018 counting only the distinct ones).

The product of its digits is 518400, while the sum is 42.

It can be divided in two parts, 2322165 and 5612232, that added together give a palindrome (7934397).

The spelling of 23221655612232 in words is "twenty-three trillion, two hundred twenty-one billion, six hundred fifty-five million, six hundred twelve thousand, two hundred thirty-two".