320112222220 has 24 divisors (see below), whose sum is σ = 768269333664. Its totient is φ = 109752761856.

The previous prime is 320112222173. The next prime is 320112222229. The reversal of 320112222220 is 22222211023.

It is not an unprimeable number, because it can be changed into a prime (320112222229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1143257797 + ... + 1143258076.

It is an arithmetic number, because the mean of its divisors is an integer number (32011222236).

Almost surely, 2^320112222220 is an apocalyptic number.

It is an amenable number.

320112222220 is an abundant number, since it is smaller than the sum of its proper divisors (448157111444).

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

320112222220 is a wasteful number, since it uses less digits than its factorization.

320112222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286515889 (or 2286515887 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 320112222220 its reverse (22222211023), we get a palindrome (342334433243).

The spelling of 320112222220 in words is "three hundred twenty billion, one hundred twelve million, two hundred twenty-two thousand, two hundred twenty".