212012122011191 has 2 divisors, whose sum is σ = 212012122011192. Its totient is φ = 212012122011190.

The previous prime is 212012122011167. The next prime is 212012122011251. The reversal of 212012122011191 is 191110221210212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212012122011191 - 2⁶ = 212012122011127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212012122011191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212012122011121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106006061005595 + 106006061005596.

It is an arithmetic number, because the mean of its divisors is an integer number (106006061005596).

Almost surely, 2^{212012122011191} is an apocalyptic number.

212012122011191 is a deficient number, since it is larger than the sum of its proper divisors (1).

212012122011191 is an equidigital number, since it uses as much as digits as its factorization.

212012122011191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 26.

The spelling of 212012122011191 in words is "two hundred twelve trillion, twelve billion, one hundred twenty-two million, eleven thousand, one hundred ninety-one".