32221344232 has 64 divisors (see below), whose sum is σ = 75532953600. Its totient is φ = 12518715840.

The previous prime is 32221344187. The next prime is 32221344257. The reversal of 32221344232 is 23244312223.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 32221344232.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148293 + ... + 293995.

It is an arithmetic number, because the mean of its divisors is an integer number (1180202400).

Almost surely, 2^32221344232 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 32221344232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37766476800).

32221344232 is an abundant number, since it is smaller than the sum of its proper divisors (43311609368).

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

32221344232 is a wasteful number, since it uses less digits than its factorization.

32221344232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146086 (or 146082 counting only the distinct ones).

The product of its digits is 13824, while the sum is 28.

Adding to 32221344232 its reverse (23244312223), we get a palindrome (55465656455).

The spelling of 32221344232 in words is "thirty-two billion, two hundred twenty-one million, three hundred forty-four thousand, two hundred thirty-two".