320020220322 has 48 divisors (see below), whose sum is σ = 756513602208. Its totient is φ = 96962725440.

The previous prime is 320020220243. The next prime is 320020220363. The reversal of 320020220322 is 223022020023.

320020220322 is a `hidden beast` number, since 320 + 0 + 2 + 0 + 2 + 20 + 322 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 320020220295 and 320020220304.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1413933 + ... + 1624575.

It is an arithmetic number, because the mean of its divisors is an integer number (15760700046).

Almost surely, 2^320020220322 is an apocalyptic number.

320020220322 is an abundant number, since it is smaller than the sum of its proper divisors (436493381886).

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

320020220322 is a wasteful number, since it uses less digits than its factorization.

320020220322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218335 (or 218332 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 320020220322 its reverse (223022020023), we get a palindrome (543042240345).

The spelling of 320020220322 in words is "three hundred twenty billion, twenty million, two hundred twenty thousand, three hundred twenty-two".