320212222321 has 16 divisors (see below), whose sum is σ = 339176534400. Its totient is φ = 301464678528.

The previous prime is 320212222313. The next prime is 320212222339. The reversal of 320212222321 is 123222212023.

It is a cyclic number.

It is not a de Polignac number, because 320212222321 - 2³ = 320212222313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320212222292 and 320212222301.

It is not an unprimeable number, because it can be changed into a prime (320212222021) 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, 1965435 + ... + 2122111.

It is an arithmetic number, because the mean of its divisors is an integer number (21198533400).

Almost surely, 2^320212222321 is an apocalyptic number.

It is an amenable number.

320212222321 is a deficient number, since it is larger than the sum of its proper divisors (18964312079).

320212222321 is a wasteful number, since it uses less digits than its factorization.

320212222321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157368.

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

Adding to 320212222321 its reverse (123222212023), we get a palindrome (443434434344).

The spelling of 320212222321 in words is "three hundred twenty billion, two hundred twelve million, two hundred twenty-two thousand, three hundred twenty-one".