12122411309 has 2 divisors, whose sum is σ = 12122411310. Its totient is φ = 12122411308.

The previous prime is 12122411297. The next prime is 12122411359. The reversal of 12122411309 is 90311422121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9516002500 + 2606408809 = 97550^2 + 51053^2 .

It is an emirp because it is prime and its reverse (90311422121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12122411309 - 2⁸ = 12122411053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12122411359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061205654 + 6061205655.

It is an arithmetic number, because the mean of its divisors is an integer number (6061205655).

Almost surely, 2^12122411309 is an apocalyptic number.

It is an amenable number.

12122411309 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122411309 is an equidigital number, since it uses as much as digits as its factorization.

12122411309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 12122411309 in words is "twelve billion, one hundred twenty-two million, four hundred eleven thousand, three hundred nine".