3200331221 has 16 divisors (see below), whose sum is σ = 3421616640. Its totient is φ = 2986683840.

The previous prime is 3200331133. The next prime is 3200331227. The reversal of 3200331221 is 1221330023.

It is not a de Polignac number, because 3200331221 - 2²² = 3196136917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3200331221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3200331227) 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, 1002590 + ... + 1005776.

It is an arithmetic number, because the mean of its divisors is an integer number (213851040).

Almost surely, 2^3200331221 is an apocalyptic number.

3200331221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3200331221 is a deficient number, since it is larger than the sum of its proper divisors (221285419).

3200331221 is a wasteful number, since it uses less digits than its factorization.

3200331221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4364.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 3200331221 is about 56571.4700268607. The cubic root of 3200331221 is about 1473.6634405603.

Adding to 3200331221 its reverse (1221330023), we get a palindrome (4421661244).

The spelling of 3200331221 in words is "three billion, two hundred million, three hundred thirty-one thousand, two hundred twenty-one".