12097121 has 2 divisors, whose sum is σ = 12097122. Its totient is φ = 12097120.

The previous prime is 12097109. The next prime is 12097123. The reversal of 12097121 is 12179021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11826721 + 270400 = 3439^2 + 520^2 .

It is a cyclic number.

It is not a de Polignac number, because 12097121 - 2¹⁴ = 12080737 is a prime.

Together with 12097123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12097123) 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, 6048560 + 6048561.

It is an arithmetic number, because the mean of its divisors is an integer number (6048561).

Almost surely, 2^12097121 is an apocalyptic number.

It is an amenable number.

12097121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12097121 is an equidigital number, since it uses as much as digits as its factorization.

12097121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 12097121 is about 3478.0915744126. The cubic root of 12097121 is about 229.5588329698.

The spelling of 12097121 in words is "twelve million, ninety-seven thousand, one hundred twenty-one".