3221323213 has 12 divisors (see below), whose sum is σ = 3547615968. Its totient is φ = 2919086280.

The previous prime is 3221323211. The next prime is 3221323223. The reversal of 3221323213 is 3123231223.

It is not a de Polignac number, because 3221323213 - 2¹ = 3221323211 is a prime.

It is a super-2 number, since 2×3221323213² = 20753846485225286738, which 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 (3221323211) 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, 185683 + ... + 202288.

It is an arithmetic number, because the mean of its divisors is an integer number (295634664).

Almost surely, 2^3221323213 is an apocalyptic number.

It is an amenable number.

3221323213 is a deficient number, since it is larger than the sum of its proper divisors (326292755).

3221323213 is a wasteful number, since it uses less digits than its factorization.

3221323213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388032 (or 388013 counting only the distinct ones).

The product of its digits is 1296, while the sum is 22.

The square root of 3221323213 is about 56756.7019214471. The cubic root of 3221323213 is about 1476.8784972355.

Adding to 3221323213 its reverse (3123231223), we get a palindrome (6344554436).

The spelling of 3221323213 in words is "three billion, two hundred twenty-one million, three hundred twenty-three thousand, two hundred thirteen".