12228711667 has 2 divisors, whose sum is σ = 12228711668. Its totient is φ = 12228711666.

The previous prime is 12228711647. The next prime is 12228711679. The reversal of 12228711667 is 76611782221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12228711667 is a prime.

It is not a weakly prime, because it can be changed into another prime (12228711637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6114355833 + 6114355834.

It is an arithmetic number, because the mean of its divisors is an integer number (6114355834).

Almost surely, 2^12228711667 is an apocalyptic number.

12228711667 is a deficient number, since it is larger than the sum of its proper divisors (1).

12228711667 is an equidigital number, since it uses as much as digits as its factorization.

12228711667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 43.

The spelling of 12228711667 in words is "twelve billion, two hundred twenty-eight million, seven hundred eleven thousand, six hundred sixty-seven".