321220332213 has 8 divisors (see below), whose sum is σ = 467229574176. Its totient is φ = 194678989200.

The previous prime is 321220332197. The next prime is 321220332221. The reversal of 321220332213 is 312233022123.

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

It is not a de Polignac number, because 321220332213 - 2⁴ = 321220332197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321220332233) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4866974698 + ... + 4866974763.

It is an arithmetic number, because the mean of its divisors is an integer number (58403696772).

Almost surely, 2^321220332213 is an apocalyptic number.

321220332213 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

321220332213 is a deficient number, since it is larger than the sum of its proper divisors (146009241963).

321220332213 is a wasteful number, since it uses less digits than its factorization.

321220332213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9733949475.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 321220332213 its reverse (312233022123), we get a palindrome (633453354336).

The spelling of 321220332213 in words is "three hundred twenty-one billion, two hundred twenty million, three hundred thirty-two thousand, two hundred thirteen".