12121097 has 2 divisors, whose sum is σ = 12121098. Its totient is φ = 12121096.

The previous prime is 12121091. The next prime is 12121099. The reversal of 12121097 is 79012121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11999296 + 121801 = 3464^2 + 349^2 .

It is a cyclic number.

It is not a de Polignac number, because 12121097 - 2¹⁴ = 12104713 is a prime.

Together with 12121099, 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 (12121091) 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, 6060548 + 6060549.

It is an arithmetic number, because the mean of its divisors is an integer number (6060549).

Almost surely, 2^12121097 is an apocalyptic number.

It is an amenable number.

12121097 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121097 is an equidigital number, since it uses as much as digits as its factorization.

12121097 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 12121097 is about 3481.5365860493. The cubic root of 12121097 is about 229.7103916315.

The spelling of 12121097 in words is "twelve million, one hundred twenty-one thousand, ninety-seven".