221102102000191 has 2 divisors, whose sum is σ = 221102102000192. Its totient is φ = 221102102000190.

The previous prime is 221102102000137. The next prime is 221102102000237. The reversal of 221102102000191 is 191000201201122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221102102000191 - 2²⁵ = 221102068445759 is a prime.

It is a super-2 number, since 2×221102102000191² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221102102010191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110551051000095 + 110551051000096.

It is an arithmetic number, because the mean of its divisors is an integer number (110551051000096).

Almost surely, 2^{221102102000191} is an apocalyptic number.

221102102000191 is a deficient number, since it is larger than the sum of its proper divisors (1).

221102102000191 is an equidigital number, since it uses as much as digits as its factorization.

221102102000191 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 22.

The spelling of 221102102000191 in words is "two hundred twenty-one trillion, one hundred two billion, one hundred two million, one hundred ninety-one", and thus it is an aban number.