102112220191 has 2 divisors, whose sum is σ = 102112220192. Its totient is φ = 102112220190.

The previous prime is 102112220159. The next prime is 102112220209. The reversal of 102112220191 is 191022211201.

It is a strong prime.

It is an emirp because it is prime and its reverse (191022211201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102112220191 - 2⁵ = 102112220159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102112220141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51056110095 + 51056110096.

It is an arithmetic number, because the mean of its divisors is an integer number (51056110096).

Almost surely, 2^102112220191 is an apocalyptic number.

102112220191 is a deficient number, since it is larger than the sum of its proper divisors (1).

102112220191 is an equidigital number, since it uses as much as digits as its factorization.

102112220191 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.

Adding to 102112220191 its reverse (191022211201), we get a palindrome (293134431392).

The spelling of 102112220191 in words is "one hundred two billion, one hundred twelve million, two hundred twenty thousand, one hundred ninety-one".