322121312320 has 56 divisors (see below), whose sum is σ = 807422515200. Its totient is φ = 122067021312.

The previous prime is 322121312309. The next prime is 322121312329. The reversal of 322121312320 is 23213121223.

It is a junction number, because it is equal to n+sod(n) for n = 322121312291 and 322121312300.

It is not an unprimeable number, because it can be changed into a prime (322121312329) 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, 26484160 + ... + 26496319.

It is an arithmetic number, because the mean of its divisors is an integer number (14418259200).

Almost surely, 2^322121312320 is an apocalyptic number.

It is an amenable number.

322121312320 is an abundant number, since it is smaller than the sum of its proper divisors (485301202880).

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

322121312320 is a wasteful number, since it uses less digits than its factorization.

322121312320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52980515 (or 52980505 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 322121312320 its reverse (23213121223), we get a palindrome (345334433543).

The spelling of 322121312320 in words is "three hundred twenty-two billion, one hundred twenty-one million, three hundred twelve thousand, three hundred twenty".