12011121097 has 2 divisors, whose sum is σ = 12011121098. Its totient is φ = 12011121096.

The previous prime is 12011121079. The next prime is 12011121103. The reversal of 12011121097 is 79012111021.

Together with previous prime (12011121079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12008653056 + 2468041 = 109584^2 + 1571^2 .

It is a cyclic number.

It is not a de Polignac number, because 12011121097 - 2¹⁵ = 12011088329 is a prime.

It is a super-3 number, since 3×12011121097³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (12011121047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005560548 + 6005560549.

It is an arithmetic number, because the mean of its divisors is an integer number (6005560549).

Almost surely, 2^12011121097 is an apocalyptic number.

It is an amenable number.

12011121097 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011121097 is an equidigital number, since it uses as much as digits as its factorization.

12011121097 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 25.

The spelling of 12011121097 in words is "twelve billion, eleven million, one hundred twenty-one thousand, ninety-seven".