102101222111191 has 2 divisors, whose sum is σ = 102101222111192. Its totient is φ = 102101222111190.

The previous prime is 102101222111183. The next prime is 102101222111221. The reversal of 102101222111191 is 191111222101201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102101222111191 - 2³ = 102101222111183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102101222111111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51050611055595 + 51050611055596.

It is an arithmetic number, because the mean of its divisors is an integer number (51050611055596).

Almost surely, 2^{102101222111191} is an apocalyptic number.

102101222111191 is a deficient number, since it is larger than the sum of its proper divisors (1).

102101222111191 is an equidigital number, since it uses as much as digits as its factorization.

102101222111191 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 25.

Adding to 102101222111191 its reverse (191111222101201), we get a palindrome (293212444212392).

The spelling of 102101222111191 in words is "one hundred two trillion, one hundred one billion, two hundred twenty-two million, one hundred eleven thousand, one hundred ninety-one".