11000002221491 has 2 divisors, whose sum is σ = 11000002221492. Its totient is φ = 11000002221490.

The previous prime is 11000002221487. The next prime is 11000002221497. The reversal of 11000002221491 is 19412220000011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11000002221491 - 2² = 11000002221487 is a prime.

It is not a weakly prime, because it can be changed into another prime (11000002221497) 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, 5500001110745 + 5500001110746.

It is an arithmetic number, because the mean of its divisors is an integer number (5500001110746).

Almost surely, 2^{11000002221491} is an apocalyptic number.

11000002221491 is a deficient number, since it is larger than the sum of its proper divisors (1).

11000002221491 is an equidigital number, since it uses as much as digits as its factorization.

11000002221491 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 23.

The spelling of 11000002221491 in words is "eleven trillion, two million, two hundred twenty-one thousand, four hundred ninety-one".