1121101220191 has 2 divisors, whose sum is σ = 1121101220192. Its totient is φ = 1121101220190.

The previous prime is 1121101220177. The next prime is 1121101220209. The reversal of 1121101220191 is 1910221011211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121101220191 - 2¹³ = 1121101211999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121101230191) 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, 560550610095 + 560550610096.

It is an arithmetic number, because the mean of its divisors is an integer number (560550610096).

Almost surely, 2^{1121101220191} is an apocalyptic number.

1121101220191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121101220191 is an equidigital number, since it uses as much as digits as its factorization.

1121101220191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 1121101220191 in words is "one trillion, one hundred twenty-one billion, one hundred one million, two hundred twenty thousand, one hundred ninety-one".