3220333221 has 64 divisors (see below), whose sum is σ = 5165568000. Its totient is φ = 1746302976.

The previous prime is 3220333211. The next prime is 3220333243. The reversal of 3220333221 is 1223330223.

It is not a de Polignac number, because 3220333221 - 2⁵ = 3220333189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220333211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9122581 + ... + 9122933.

It is an arithmetic number, because the mean of its divisors is an integer number (80712000).

Almost surely, 2^3220333221 is an apocalyptic number.

It is an amenable number.

3220333221 is a deficient number, since it is larger than the sum of its proper divisors (1945234779).

3220333221 is a wasteful number, since it uses less digits than its factorization.

3220333221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 3220333221 is about 56747.9798847501. The cubic root of 3220333221 is about 1476.7271880161.

Adding to 3220333221 its reverse (1223330223), we get a palindrome (4443663444).

The spelling of 3220333221 in words is "three billion, two hundred twenty million, three hundred thirty-three thousand, two hundred twenty-one".