320322122221 has 16 divisors (see below), whose sum is σ = 326273591808. Its totient is φ = 314415561600.

The previous prime is 320322122213. The next prime is 320322122227. The reversal of 320322122221 is 122221223023.

It is a cyclic number.

It is not a de Polignac number, because 320322122221 - 2³ = 320322122213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320322122192 and 320322122201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320322122227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18607200 + ... + 18624406.

It is an arithmetic number, because the mean of its divisors is an integer number (20392099488).

Almost surely, 2^320322122221 is an apocalyptic number.

It is an amenable number.

320322122221 is a deficient number, since it is larger than the sum of its proper divisors (5951469587).

320322122221 is a wasteful number, since it uses less digits than its factorization.

320322122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18492.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 320322122221 its reverse (122221223023), we get a palindrome (442543345244).

The spelling of 320322122221 in words is "three hundred twenty billion, three hundred twenty-two million, one hundred twenty-two thousand, two hundred twenty-one".