323122212321220 has 72 divisors (see below), whose sum is σ = 736404897803400. Its totient is φ = 119040946053120.

The previous prime is 323122212321203. The next prime is 323122212321221. The reversal of 323122212321220 is 22123212221323.

It can be written as a sum of positive squares in 12 ways, for example, as 120753549619264 + 202368662701956 = 10988792^2 + 14225634^2 .

It is not an unprimeable number, because it can be changed into a prime (323122212321221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104939271 + ... + 107974510.

It is an arithmetic number, because the mean of its divisors is an integer number (10227845802825).

Almost surely, 2^{323122212321220} is an apocalyptic number.

It is an amenable number.

323122212321220 is an abundant number, since it is smaller than the sum of its proper divisors (413282685482180).

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

323122212321220 is a wasteful number, since it uses less digits than its factorization.

323122212321220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212914265 (or 212914250 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 323122212321220 its reverse (22123212221323), we get a palindrome (345245424542543).

The spelling of 323122212321220 in words is "three hundred twenty-three trillion, one hundred twenty-two billion, two hundred twelve million, three hundred twenty-one thousand, two hundred twenty".