12122341409 has 2 divisors, whose sum is σ = 12122341410. Its totient is φ = 12122341408.

The previous prime is 12122341303. The next prime is 12122341471. The reversal of 12122341409 is 90414322121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11571735184 + 550606225 = 107572^2 + 23465^2 .

It is an emirp because it is prime and its reverse (90414322121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12122341409 - 2¹² = 12122337313 is a prime.

It is a super-2 number, since 2×12122341409² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12122341499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061170704 + 6061170705.

It is an arithmetic number, because the mean of its divisors is an integer number (6061170705).

Almost surely, 2^12122341409 is an apocalyptic number.

It is an amenable number.

12122341409 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122341409 is an equidigital number, since it uses as much as digits as its factorization.

12122341409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 12122341409 in words is "twelve billion, one hundred twenty-two million, three hundred forty-one thousand, four hundred nine".