3221012320213 has 4 divisors (see below), whose sum is σ = 3221028946720. Its totient is φ = 3220995693708.

The previous prime is 3221012320181. The next prime is 3221012320219. The reversal of 3221012320213 is 3120232101223.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3221012320213 - 2⁵ = 3221012320181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221012320219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8019195 + ... + 8411272.

It is an arithmetic number, because the mean of its divisors is an integer number (805257236680).

Almost surely, 2^{3221012320213} is an apocalyptic number.

It is an amenable number.

3221012320213 is a deficient number, since it is larger than the sum of its proper divisors (16626507).

3221012320213 is a wasteful number, since it uses less digits than its factorization.

3221012320213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16626506.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 3221012320213 its reverse (3120232101223), we get a palindrome (6341244421436).

The spelling of 3221012320213 in words is "three trillion, two hundred twenty-one billion, twelve million, three hundred twenty thousand, two hundred thirteen".