3112222111 has 2 divisors, whose sum is σ = 3112222112. Its totient is φ = 3112222110.

The previous prime is 3112222039. The next prime is 3112222117. The reversal of 3112222111 is 1112222113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3112222111 - 2⁹ = 3112221599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3112222117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556111055 + 1556111056.

It is an arithmetic number, because the mean of its divisors is an integer number (1556111056).

Almost surely, 2^3112222111 is an apocalyptic number.

3112222111 is a deficient number, since it is larger than the sum of its proper divisors (1).

3112222111 is an equidigital number, since it uses as much as digits as its factorization.

3112222111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48, while the sum is 16.

The square root of 3112222111 is about 55787.2934546927. The cubic root of 3112222111 is about 1460.0134656605.

Adding to 3112222111 its reverse (1112222113), we get a palindrome (4224444224).

The spelling of 3112222111 in words is "three billion, one hundred twelve million, two hundred twenty-two thousand, one hundred eleven".