11122012221091 has 2 divisors, whose sum is σ = 11122012221092. Its totient is φ = 11122012221090.

The previous prime is 11122012221083. The next prime is 11122012221101. The reversal of 11122012221091 is 19012221022111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11122012221091 - 2³ = 11122012221083 is a prime.

It is not a weakly prime, because it can be changed into another prime (11122012221031) 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, 5561006110545 + 5561006110546.

It is an arithmetic number, because the mean of its divisors is an integer number (5561006110546).

Almost surely, 2^{11122012221091} is an apocalyptic number.

11122012221091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122012221091 is an equidigital number, since it uses as much as digits as its factorization.

11122012221091 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 11122012221091 in words is "eleven trillion, one hundred twenty-two billion, twelve million, two hundred twenty-one thousand, ninety-one".