23221122232 has 128 divisors (see below), whose sum is σ = 57417062400. Its totient is φ = 8529494400.

The previous prime is 23221122217. The next prime is 23221122313. The reversal of 23221122232 is 23222112232.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2464843 + ... + 2474245.

It is an arithmetic number, because the mean of its divisors is an integer number (448570800).

Almost surely, 2^23221122232 is an apocalyptic number.

23221122232 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 23221122232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28708531200).

23221122232 is an abundant number, since it is smaller than the sum of its proper divisors (34195940168).

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

23221122232 is a wasteful number, since it uses less digits than its factorization.

23221122232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9657 (or 9653 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

Adding to 23221122232 its reverse (23222112232), we get a palindrome (46443234464).

The spelling of 23221122232 in words is "twenty-three billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred thirty-two".