22147322832 has 320 divisors, whose sum is σ = 69040224000. Its totient is φ = 6772211712.

The previous prime is 22147322809. The next prime is 22147322921. The reversal of 22147322832 is 23822374122.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 58436019 + ... + 58436397.

It is an arithmetic number, because the mean of its divisors is an integer number (215750700).

Almost surely, 2^22147322832 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 22147322832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34520112000).

22147322832 is an abundant number, since it is smaller than the sum of its proper divisors (46892901168).

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

22147322832 is a wasteful number, since it uses less digits than its factorization.

22147322832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595 (or 583 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

Adding to 22147322832 its reverse (23822374122), we get a palindrome (45969696954).

The spelling of 22147322832 in words is "twenty-two billion, one hundred forty-seven million, three hundred twenty-two thousand, eight hundred thirty-two".