11122220210191 has 2 divisors, whose sum is σ = 11122220210192. Its totient is φ = 11122220210190.

The previous prime is 11122220210149. The next prime is 11122220210261. The reversal of 11122220210191 is 19101202222111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11122220210191 - 2¹⁹ = 11122219685903 is a prime.

It is a super-2 number, since 2×11122220210191² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11122220210291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561110105095 + 5561110105096.

It is an arithmetic number, because the mean of its divisors is an integer number (5561110105096).

Almost surely, 2^{11122220210191} is an apocalyptic number.

11122220210191 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122220210191 is an equidigital number, since it uses as much as digits as its factorization.

11122220210191 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 11122220210191 in words is "eleven trillion, one hundred twenty-two billion, two hundred twenty million, two hundred ten thousand, one hundred ninety-one".