12111201110191 has 2 divisors, whose sum is σ = 12111201110192. Its totient is φ = 12111201110190.

The previous prime is 12111201110089. The next prime is 12111201110249. The reversal of 12111201110191 is 19101110211121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12111201110191 - 2¹³ = 12111201101999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12111201170191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055600555095 + 6055600555096.

It is an arithmetic number, because the mean of its divisors is an integer number (6055600555096).

Almost surely, 2^{12111201110191} is an apocalyptic number.

12111201110191 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111201110191 is an equidigital number, since it uses as much as digits as its factorization.

12111201110191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 22.

The spelling of 12111201110191 in words is "twelve trillion, one hundred eleven billion, two hundred one million, one hundred ten thousand, one hundred ninety-one".