2222121101191 has 2 divisors, whose sum is σ = 2222121101192. Its totient is φ = 2222121101190.

The previous prime is 2222121101177. The next prime is 2222121101203. The reversal of 2222121101191 is 1911011212222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2222121101191 - 2⁷ = 2222121101063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2222121104191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111060550595 + 1111060550596.

It is an arithmetic number, because the mean of its divisors is an integer number (1111060550596).

Almost surely, 2^{2222121101191} is an apocalyptic number.

2222121101191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222121101191 is an equidigital number, since it uses as much as digits as its factorization.

2222121101191 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 25.

The spelling of 2222121101191 in words is "two trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred one thousand, one hundred ninety-one".