102122120210197 has 2 divisors, whose sum is σ = 102122120210198. Its totient is φ = 102122120210196.

The previous prime is 102122120210113. The next prime is 102122120210203. The reversal of 102122120210197 is 791012021221201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51355554705841 + 50766565504356 = 7166279^2 + 7125066^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102122120210197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102122120210597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51061060105098 + 51061060105099.

It is an arithmetic number, because the mean of its divisors is an integer number (51061060105099).

Almost surely, 2^{102122120210197} is an apocalyptic number.

It is an amenable number.

102122120210197 is a deficient number, since it is larger than the sum of its proper divisors (1).

102122120210197 is an equidigital number, since it uses as much as digits as its factorization.

102122120210197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 31.

Adding to 102122120210197 its reverse (791012021221201), we get a palindrome (893134141431398).

The spelling of 102122120210197 in words is "one hundred two trillion, one hundred twenty-two billion, one hundred twenty million, two hundred ten thousand, one hundred ninety-seven".