3220303213 has 4 divisors (see below), whose sum is σ = 3220435548. Its totient is φ = 3220170880.

The previous prime is 3220303189. The next prime is 3220303253. The reversal of 3220303213 is 3123030223.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2959577604 + 260725609 = 54402^2 + 16147^2 .

It is a cyclic number.

It is not a de Polignac number, because 3220303213 - 2¹⁷ = 3220172141 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 (3220303253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17956 + ... + 82237.

It is an arithmetic number, because the mean of its divisors is an integer number (805108887).

Almost surely, 2^3220303213 is an apocalyptic number.

It is an amenable number.

3220303213 is a deficient number, since it is larger than the sum of its proper divisors (132335).

3220303213 is a wasteful number, since it uses less digits than its factorization.

3220303213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132334.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 3220303213 is about 56747.7154870573. The cubic root of 3220303213 is about 1476.7226011443.

Adding to 3220303213 its reverse (3123030223), we get a palindrome (6343333436).

The spelling of 3220303213 in words is "three billion, two hundred twenty million, three hundred three thousand, two hundred thirteen".