3221021313 has 12 divisors (see below), whose sum is σ = 4653264720. Its totient is φ = 2147034456.

The previous prime is 3221021261. The next prime is 3221021381. The reversal of 3221021313 is 3131201223.

3221021313 is a `hidden beast` number, since 322 + 10 + 21 + 313 = 666.

It is not a de Polignac number, because 3221021313 - 2⁹ = 3221020801 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3221026313) 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 11 ways as a sum of consecutive naturals, for example, 51078 + ... + 95136.

It is an arithmetic number, because the mean of its divisors is an integer number (387772060).

Almost surely, 2^3221021313 is an apocalyptic number.

It is an amenable number.

3221021313 is a deficient number, since it is larger than the sum of its proper divisors (1432243407).

3221021313 is a wasteful number, since it uses less digits than its factorization.

3221021313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52188 (or 52185 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3221021313 is about 56754.0422613227. The cubic root of 3221021313 is about 1476.8323584784.

Adding to 3221021313 its reverse (3131201223), we get a palindrome (6352222536).

The spelling of 3221021313 in words is "three billion, two hundred twenty-one million, twenty-one thousand, three hundred thirteen".