3221320223 has 16 divisors (see below), whose sum is σ = 3669172992. Its totient is φ = 2799456000.

The previous prime is 3221320217. The next prime is 3221320229. The reversal of 3221320223 is 3220231223.

It is an interprime number because it is at equal distance from previous prime (3221320217) and next prime (3221320229).

It is not a de Polignac number, because 3221320223 - 2⁸ = 3221319967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3221320195 and 3221320204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221320229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 607343 + ... + 612623.

It is an arithmetic number, because the mean of its divisors is an integer number (229323312).

Almost surely, 2^3221320223 is an apocalyptic number.

3221320223 is a deficient number, since it is larger than the sum of its proper divisors (447852769).

3221320223 is a wasteful number, since it uses less digits than its factorization.

3221320223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7726.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 3221320223 is about 56756.6755809394. The cubic root of 3221320223 is about 1476.8780402941.

Adding to 3221320223 its reverse (3220231223), we get a palindrome (6441551446).

The spelling of 3221320223 in words is "three billion, two hundred twenty-one million, three hundred twenty thousand, two hundred twenty-three".