211210100112191 has 2 divisors, whose sum is σ = 211210100112192. Its totient is φ = 211210100112190.

The previous prime is 211210100112161. The next prime is 211210100112223. The reversal of 211210100112191 is 191211001012112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211210100112191 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211210100112101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105605050056095 + 105605050056096.

It is an arithmetic number, because the mean of its divisors is an integer number (105605050056096).

Almost surely, 2^{211210100112191} is an apocalyptic number.

211210100112191 is a deficient number, since it is larger than the sum of its proper divisors (1).

211210100112191 is an equidigital number, since it uses as much as digits as its factorization.

211210100112191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 23.

The spelling of 211210100112191 in words is "two hundred eleven trillion, two hundred ten billion, one hundred million, one hundred twelve thousand, one hundred ninety-one".