12101212111097 has 2 divisors, whose sum is σ = 12101212111098. Its totient is φ = 12101212111096.

The previous prime is 12101212111063. The next prime is 12101212111111. The reversal of 12101212111097 is 79011121210121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8345604543376 + 3755607567721 = 2888876^2 + 1937939^2 .

It is a cyclic number.

It is not a de Polignac number, because 12101212111097 - 2⁴⁰ = 11001700483321 is a prime.

It is a super-2 number, since 2×12101212111097² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12151212111097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050606055548 + 6050606055549.

It is an arithmetic number, because the mean of its divisors is an integer number (6050606055549).

Almost surely, 2^{12101212111097} is an apocalyptic number.

It is an amenable number.

12101212111097 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101212111097 is an equidigital number, since it uses as much as digits as its factorization.

12101212111097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 29.

The spelling of 12101212111097 in words is "twelve trillion, one hundred one billion, two hundred twelve million, one hundred eleven thousand, ninety-seven".