12422143520509 has 2 divisors, whose sum is σ = 12422143520510. Its totient is φ = 12422143520508.

The previous prime is 12422143520333. The next prime is 12422143520551. The reversal of 12422143520509 is 90502534122421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12417413107225 + 4730413284 = 3523835^2 + 68778^2 .

It is an emirp because it is prime and its reverse (90502534122421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12422143520509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12422143520569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6211071760254 + 6211071760255.

It is an arithmetic number, because the mean of its divisors is an integer number (6211071760255).

Almost surely, 2^{12422143520509} is an apocalyptic number.

It is an amenable number.

12422143520509 is a deficient number, since it is larger than the sum of its proper divisors (1).

12422143520509 is an equidigital number, since it uses as much as digits as its factorization.

12422143520509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 12422143520509 in words is "twelve trillion, four hundred twenty-two billion, one hundred forty-three million, five hundred twenty thousand, five hundred nine".