320022432220 has 24 divisors (see below), whose sum is σ = 672706666800. Its totient is φ = 127883342592.

The previous prime is 320022432209. The next prime is 320022432221. The reversal of 320022432220 is 22234220023.

It is a junction number, because it is equal to n+sod(n) for n = 320022432191 and 320022432200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320022432221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7831005 + ... + 7871764.

It is an arithmetic number, because the mean of its divisors is an integer number (28029444450).

Almost surely, 2^320022432220 is an apocalyptic number.

It is an amenable number.

320022432220 is an abundant number, since it is smaller than the sum of its proper divisors (352684234580).

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

320022432220 is a wasteful number, since it uses less digits than its factorization.

320022432220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15703797 (or 15703795 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 320022432220 its reverse (22234220023), we get a palindrome (342256652243).

The spelling of 320022432220 in words is "three hundred twenty billion, twenty-two million, four hundred thirty-two thousand, two hundred twenty".