3220213213 has 6 divisors (see below), whose sum is σ = 3745962366. Its totient is φ = 2760182712.

The previous prime is 3220213211. The next prime is 3220213223. The reversal of 3220213213 is 3123120223.

It can be written as a sum of positive squares in only one way, i.e., 3203786404 + 16426809 = 56602^2 + 4053^2 .

It is not a de Polignac number, because 3220213213 - 2¹ = 3220213211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220213211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32859270 + ... + 32859367.

It is an arithmetic number, because the mean of its divisors is an integer number (624327061).

Almost surely, 2^3220213213 is an apocalyptic number.

It is an amenable number.

3220213213 is a deficient number, since it is larger than the sum of its proper divisors (525749153).

3220213213 is an equidigital number, since it uses as much as digits as its factorization.

3220213213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65718651 (or 65718644 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 3220213213 is about 56746.9224980527. The cubic root of 3220213213 is about 1476.7088440265.

Adding to 3220213213 its reverse (3123120223), we get a palindrome (6343333436).

The spelling of 3220213213 in words is "three billion, two hundred twenty million, two hundred thirteen thousand, two hundred thirteen".