12122812279 has 2 divisors, whose sum is σ = 12122812280. Its totient is φ = 12122812278.

The previous prime is 12122812267. The next prime is 12122812283. The reversal of 12122812279 is 97221822121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12122812279 - 2¹³ = 12122804087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12122812259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061406139 + 6061406140.

It is an arithmetic number, because the mean of its divisors is an integer number (6061406140).

Almost surely, 2^12122812279 is an apocalyptic number.

12122812279 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122812279 is an equidigital number, since it uses as much as digits as its factorization.

12122812279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 37.

The spelling of 12122812279 in words is "twelve billion, one hundred twenty-two million, eight hundred twelve thousand, two hundred seventy-nine".