110221002191 has 2 divisors, whose sum is σ = 110221002192. Its totient is φ = 110221002190.

The previous prime is 110221002149. The next prime is 110221002193. The reversal of 110221002191 is 191200122011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 110221002191 - 2¹⁰ = 110221001167 is a prime.

Together with 110221002193, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110221002193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55110501095 + 55110501096.

It is an arithmetic number, because the mean of its divisors is an integer number (55110501096).

Almost surely, 2^110221002191 is an apocalyptic number.

110221002191 is a deficient number, since it is larger than the sum of its proper divisors (1).

110221002191 is an equidigital number, since it uses as much as digits as its factorization.

110221002191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 110221002191 in words is "one hundred ten billion, two hundred twenty-one million, two thousand, one hundred ninety-one".