11111119221211 has 2 divisors, whose sum is σ = 11111119221212. Its totient is φ = 11111119221210.

The previous prime is 11111119221199. The next prime is 11111119221283. The reversal of 11111119221211 is 11212291111111.

It is a happy number.

It is a m-pointer prime, because the next prime (11111119221283) can be obtained adding 11111119221211 to its product of digits (72).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11111119221211 is a prime.

It is not a weakly prime, because it can be changed into another prime (11111119225211) 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, 5555559610605 + 5555559610606.

It is an arithmetic number, because the mean of its divisors is an integer number (5555559610606).

Almost surely, 2^{11111119221211} is an apocalyptic number.

11111119221211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111119221211 is an equidigital number, since it uses as much as digits as its factorization.

11111119221211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72, while the sum is 25.

The spelling of 11111119221211 in words is "eleven trillion, one hundred eleven billion, one hundred nineteen million, two hundred twenty-one thousand, two hundred eleven".