11020221201191 has 2 divisors, whose sum is σ = 11020221201192. Its totient is φ = 11020221201190.

The previous prime is 11020221201169. The next prime is 11020221201203. The reversal of 11020221201191 is 19110212202011.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11020221201191 - 2⁶ = 11020221201127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11020221201161) 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, 5510110600595 + 5510110600596.

It is an arithmetic number, because the mean of its divisors is an integer number (5510110600596).

Almost surely, 2^{11020221201191} is an apocalyptic number.

11020221201191 is a deficient number, since it is larger than the sum of its proper divisors (1).

11020221201191 is an equidigital number, since it uses as much as digits as its factorization.

11020221201191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 11020221201191 in words is "eleven trillion, twenty billion, two hundred twenty-one million, two hundred one thousand, one hundred ninety-one".