3112216109 has 2 divisors, whose sum is σ = 3112216110. Its totient is φ = 3112216108.

The previous prime is 3112216099. The next prime is 3112216189. The reversal of 3112216109 is 9016122113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2297284900 + 814931209 = 47930^2 + 28547^2 .

It is an emirp because it is prime and its reverse (9016122113) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3112216109 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3112216189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556108054 + 1556108055.

It is an arithmetic number, because the mean of its divisors is an integer number (1556108055).

Almost surely, 2^3112216109 is an apocalyptic number.

It is an amenable number.

3112216109 is a deficient number, since it is larger than the sum of its proper divisors (1).

3112216109 is an equidigital number, since it uses as much as digits as its factorization.

3112216109 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 26.

The square root of 3112216109 is about 55787.2396610551. The cubic root of 3112216109 is about 1460.0125271021.

The spelling of 3112216109 in words is "three billion, one hundred twelve million, two hundred sixteen thousand, one hundred nine".