22020321232 has 160 divisors (see below), whose sum is σ = 53158542080. Its totient is φ = 8604610560.

The previous prime is 22020321179. The next prime is 22020321299. The reversal of 22020321232 is 23212302022.

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, 70352308 + ... + 70352620.

It is an arithmetic number, because the mean of its divisors is an integer number (332240888).

Almost surely, 2^22020321232 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 22020321232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26579271040).

22020321232 is an abundant number, since it is smaller than the sum of its proper divisors (31138220848).

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

22020321232 is a wasteful number, since it uses less digits than its factorization.

22020321232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781 (or 775 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 22020321232 its reverse (23212302022), we get a palindrome (45232623254).

The spelling of 22020321232 in words is "twenty-two billion, twenty million, three hundred twenty-one thousand, two hundred thirty-two".