12215193338879 has 2 divisors, whose sum is σ = 12215193338880. Its totient is φ = 12215193338878.

The previous prime is 12215193338827. The next prime is 12215193338917. The reversal of 12215193338879 is 97883339151221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12215193338879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12215193338819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6107596669439 + 6107596669440.

It is an arithmetic number, because the mean of its divisors is an integer number (6107596669440).

Almost surely, 2^{12215193338879} is an apocalyptic number.

12215193338879 is a deficient number, since it is larger than the sum of its proper divisors (1).

12215193338879 is an equidigital number, since it uses as much as digits as its factorization.

12215193338879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19595520, while the sum is 62.

The spelling of 12215193338879 in words is "twelve trillion, two hundred fifteen billion, one hundred ninety-three million, three hundred thirty-eight thousand, eight hundred seventy-nine".