2212120020191 has 2 divisors, whose sum is σ = 2212120020192. Its totient is φ = 2212120020190.

The previous prime is 2212120020163. The next prime is 2212120020193. The reversal of 2212120020191 is 1910200212122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2212120020191 - 2¹⁸ = 2212119758047 is a prime.

Together with 2212120020193, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2212120020193) 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, 1106060010095 + 1106060010096.

It is an arithmetic number, because the mean of its divisors is an integer number (1106060010096).

Almost surely, 2^{2212120020191} is an apocalyptic number.

2212120020191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212120020191 is an equidigital number, since it uses as much as digits as its factorization.

2212120020191 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 23.

The spelling of 2212120020191 in words is "two trillion, two hundred twelve billion, one hundred twenty million, twenty thousand, one hundred ninety-one".