11221130191 has 2 divisors, whose sum is σ = 11221130192. Its totient is φ = 11221130190.

The previous prime is 11221130189. The next prime is 11221130213. The reversal of 11221130191 is 19103112211.

It is an a-pointer prime, because the next prime (11221130213) can be obtained adding 11221130191 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11221130191 - 2¹ = 11221130189 is a prime.

Together with 11221130189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11221131191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610565095 + 5610565096.

It is an arithmetic number, because the mean of its divisors is an integer number (5610565096).

Almost surely, 2^11221130191 is an apocalyptic number.

11221130191 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221130191 is an equidigital number, since it uses as much as digits as its factorization.

11221130191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 22.

The spelling of 11221130191 in words is "eleven billion, two hundred twenty-one million, one hundred thirty thousand, one hundred ninety-one".