320331221211 has 8 divisors (see below), whose sum is σ = 433123905024. Its totient is φ = 210546342440.

The previous prime is 320331221173. The next prime is 320331221239. The reversal of 320331221211 is 112122133023.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320331221211 is a prime.

It is a super-2 number, since 2×320331221211² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320331221611) 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, 751951011 + ... + 751951436.

It is an arithmetic number, because the mean of its divisors is an integer number (54140488128).

Almost surely, 2^320331221211 is an apocalyptic number.

320331221211 is a deficient number, since it is larger than the sum of its proper divisors (112792683813).

320331221211 is a wasteful number, since it uses less digits than its factorization.

320331221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503902521.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 320331221211 its reverse (112122133023), we get a palindrome (432453354234).

The spelling of 320331221211 in words is "three hundred twenty billion, three hundred thirty-one million, two hundred twenty-one thousand, two hundred eleven".