12366121 has 2 divisors, whose sum is σ = 12366122. Its totient is φ = 12366120.

The previous prime is 12366113. The next prime is 12366139. The reversal of 12366121 is 12166321.

12366121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8410000 + 3956121 = 2900^2 + 1989^2 .

It is an emirp because it is prime and its reverse (12166321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12366121 - 2³ = 12366113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12366092 and 12366101.

It is not a weakly prime, because it can be changed into another prime (12366181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6183060 + 6183061.

It is an arithmetic number, because the mean of its divisors is an integer number (6183061).

Almost surely, 2^12366121 is an apocalyptic number.

It is an amenable number.

12366121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12366121 is an equidigital number, since it uses as much as digits as its factorization.

12366121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 22.

The square root of 12366121 is about 3516.5495873086. The cubic root of 12366121 is about 231.2479175853.

The spelling of 12366121 in words is "twelve million, three hundred sixty-six thousand, one hundred twenty-one".