3220012309 has 2 divisors, whose sum is σ = 3220012310. Its totient is φ = 3220012308.

The previous prime is 3220012277. The next prime is 3220012331. The reversal of 3220012309 is 9032100223.

It is an a-pointer prime, because the next prime (3220012331) can be obtained adding 3220012309 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2324686225 + 895326084 = 48215^2 + 29922^2 .

It is a cyclic number.

It is not a de Polignac number, because 3220012309 - 2⁵ = 3220012277 is a prime.

It is a super-2 number, since 2×3220012309² = 20736958540223022962, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3220012309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3220012339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610006154 + 1610006155.

It is an arithmetic number, because the mean of its divisors is an integer number (1610006155).

Almost surely, 2^3220012309 is an apocalyptic number.

It is an amenable number.

3220012309 is a deficient number, since it is larger than the sum of its proper divisors (1).

3220012309 is an equidigital number, since it uses as much as digits as its factorization.

3220012309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 3220012309 is about 56745.1522951521. The cubic root of 3220012309 is about 1476.6781335462.

The spelling of 3220012309 in words is "three billion, two hundred twenty million, twelve thousand, three hundred nine".