321130023222 has 32 divisors (see below), whose sum is σ = 689355682272. Its totient is φ = 99366580224.

The previous prime is 321130023197. The next prime is 321130023241. The reversal of 321130023222 is 222320031123.

It is a happy number.

It is a super-2 number, since 2×321130023222² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21556483 + ... + 21571374.

It is an arithmetic number, because the mean of its divisors is an integer number (21542365071).

Almost surely, 2^321130023222 is an apocalyptic number.

321130023222 is an abundant number, since it is smaller than the sum of its proper divisors (368225659050).

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

321130023222 is a wasteful number, since it uses less digits than its factorization.

321130023222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43127952.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 321130023222 its reverse (222320031123), we get a palindrome (543450054345).

The spelling of 321130023222 in words is "three hundred twenty-one billion, one hundred thirty million, twenty-three thousand, two hundred twenty-two".