323130102221221 has 8 divisors (see below), whose sum is σ = 323154968776664. Its totient is φ = 323105236623360.

The previous prime is 323130102221197. The next prime is 323130102221237. The reversal of 323130102221221 is 122122201031323.

It can be written as a sum of positive squares in 4 ways, for example, as 122624927020996 + 200505175200225 = 11073614^2 + 14159985^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 323130102221221 - 2⁵ = 323130102221189 is a prime.

It is a super-2 number, since 2×323130102221221² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323130102221291) 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, 766166821 + ... + 766588453.

It is an arithmetic number, because the mean of its divisors is an integer number (40394371097083).

Almost surely, 2^{323130102221221} is an apocalyptic number.

It is an amenable number.

323130102221221 is a deficient number, since it is larger than the sum of its proper divisors (24866555443).

323130102221221 is a wasteful number, since it uses less digits than its factorization.

323130102221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478791.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 323130102221221 its reverse (122122201031323), we get a palindrome (445252303252544).

The spelling of 323130102221221 in words is "three hundred twenty-three trillion, one hundred thirty billion, one hundred two million, two hundred twenty-one thousand, two hundred twenty-one".