102201111202171 has 2 divisors, whose sum is σ = 102201111202172. Its totient is φ = 102201111202170.

The previous prime is 102201111202133. The next prime is 102201111202213. The reversal of 102201111202171 is 171202111102201.

It is a weak prime.

It is an emirp because it is prime and its reverse (171202111102201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102201111202171 - 2³³ = 102192521267579 is a prime.

It is a super-2 number, since 2×102201111202171² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102201111242171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51100555601085 + 51100555601086.

It is an arithmetic number, because the mean of its divisors is an integer number (51100555601086).

Almost surely, 2^{102201111202171} is an apocalyptic number.

102201111202171 is a deficient number, since it is larger than the sum of its proper divisors (1).

102201111202171 is an equidigital number, since it uses as much as digits as its factorization.

102201111202171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 22.

Adding to 102201111202171 its reverse (171202111102201), we get a palindrome (273403222304372).

The spelling of 102201111202171 in words is "one hundred two trillion, two hundred one billion, one hundred eleven million, two hundred two thousand, one hundred seventy-one".