102202121191 has 2 divisors, whose sum is σ = 102202121192. Its totient is φ = 102202121190.

The previous prime is 102202121033. The next prime is 102202121213. The reversal of 102202121191 is 191121202201.

It is an a-pointer prime, because the next prime (102202121213) can be obtained adding 102202121191 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102202121191 - 2³⁵ = 67842382823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102202121491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51101060595 + 51101060596.

It is an arithmetic number, because the mean of its divisors is an integer number (51101060596).

Almost surely, 2^102202121191 is an apocalyptic number.

102202121191 is a deficient number, since it is larger than the sum of its proper divisors (1).

102202121191 is an equidigital number, since it uses as much as digits as its factorization.

102202121191 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 22.

Adding to 102202121191 its reverse (191121202201), we get a palindrome (293323323392).

The spelling of 102202121191 in words is "one hundred two billion, two hundred two million, one hundred twenty-one thousand, one hundred ninety-one".