2122202120191 has 2 divisors, whose sum is σ = 2122202120192. Its totient is φ = 2122202120190.

The previous prime is 2122202120173. The next prime is 2122202120221. The reversal of 2122202120191 is 1910212022212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2122202120191 - 2²¹ = 2122200023039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122202120141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061101060095 + 1061101060096.

It is an arithmetic number, because the mean of its divisors is an integer number (1061101060096).

Almost surely, 2^{2122202120191} is an apocalyptic number.

2122202120191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122202120191 is an equidigital number, since it uses as much as digits as its factorization.

2122202120191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 2122202120191 in words is "two trillion, one hundred twenty-two billion, two hundred two million, one hundred twenty thousand, one hundred ninety-one".