1122221022191 has 2 divisors, whose sum is σ = 1122221022192. Its totient is φ = 1122221022190.

The previous prime is 1122221022187. The next prime is 1122221022217. The reversal of 1122221022191 is 1912201222211.

It is an a-pointer prime, because the next prime (1122221022217) can be obtained adding 1122221022191 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1122221022191 - 2² = 1122221022187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1122221022191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122221022101) 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, 561110511095 + 561110511096.

It is an arithmetic number, because the mean of its divisors is an integer number (561110511096).

Almost surely, 2^{1122221022191} is an apocalyptic number.

1122221022191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122221022191 is an equidigital number, since it uses as much as digits as its factorization.

1122221022191 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 26.

The spelling of 1122221022191 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-one million, twenty-two thousand, one hundred ninety-one".