3221211313 has 12 divisors (see below), whose sum is σ = 3303815040. Its totient is φ = 3140626776.

The previous prime is 3221211307. The next prime is 3221211347. The reversal of 3221211313 is 3131121223.

It is not a de Polignac number, because 3221211313 - 2²¹ = 3219114161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3221211913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1328220 + ... + 1330642.

It is an arithmetic number, because the mean of its divisors is an integer number (275317920).

Almost surely, 2^3221211313 is an apocalyptic number.

It is an amenable number.

3221211313 is a deficient number, since it is larger than the sum of its proper divisors (82603727).

3221211313 is an equidigital number, since it uses as much as digits as its factorization.

3221211313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3228 (or 3185 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 3221211313 is about 56755.7161262194. The cubic root of 3221211313 is about 1476.8613961245.

Adding to 3221211313 its reverse (3131121223), we get a palindrome (6352332536).

The spelling of 3221211313 in words is "three billion, two hundred twenty-one million, two hundred eleven thousand, three hundred thirteen".