110101221221191 has 2 divisors, whose sum is σ = 110101221221192. Its totient is φ = 110101221221190.

The previous prime is 110101221221129. The next prime is 110101221221203. The reversal of 110101221221191 is 191122122101011.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110101221221191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110101221221791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55050610610595 + 55050610610596.

It is an arithmetic number, because the mean of its divisors is an integer number (55050610610596).

Almost surely, 2^{110101221221191} is an apocalyptic number.

110101221221191 is a deficient number, since it is larger than the sum of its proper divisors (1).

110101221221191 is an equidigital number, since it uses as much as digits as its factorization.

110101221221191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 25.

The spelling of 110101221221191 in words is "one hundred ten trillion, one hundred one billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred ninety-one".