12121122111097 has 2 divisors, whose sum is σ = 12121122111098. Its totient is φ = 12121122111096.

The previous prime is 12121122111067. The next prime is 12121122111113. The reversal of 12121122111097 is 79011122112121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6668691629161 + 5452430481936 = 2582381^2 + 2335044^2 .

It is a cyclic number.

It is not a de Polignac number, because 12121122111097 - 2²³ = 12121113722489 is a prime.

It is not a weakly prime, because it can be changed into another prime (12121122111037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060561055548 + 6060561055549.

It is an arithmetic number, because the mean of its divisors is an integer number (6060561055549).

Almost surely, 2^{12121122111097} is an apocalyptic number.

It is an amenable number.

12121122111097 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121122111097 is an equidigital number, since it uses as much as digits as its factorization.

12121122111097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 31.

The spelling of 12121122111097 in words is "twelve trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred eleven thousand, ninety-seven".