102002012221117 has 2 divisors, whose sum is σ = 102002012221118. Its totient is φ = 102002012221116.

The previous prime is 102002012221091. The next prime is 102002012221127. The reversal of 102002012221117 is 711122210200201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101893459104441 + 108553116676 = 10094229^2 + 329474^2 .

It is a cyclic number.

It is not a de Polignac number, because 102002012221117 - 2¹¹ = 102002012219069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102002012221127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51001006110558 + 51001006110559.

It is an arithmetic number, because the mean of its divisors is an integer number (51001006110559).

Almost surely, 2^{102002012221117} is an apocalyptic number.

It is an amenable number.

102002012221117 is a deficient number, since it is larger than the sum of its proper divisors (1).

102002012221117 is an equidigital number, since it uses as much as digits as its factorization.

102002012221117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 102002012221117 its reverse (711122210200201), we get a palindrome (813124222421318).

The spelling of 102002012221117 in words is "one hundred two trillion, two billion, twelve million, two hundred twenty-one thousand, one hundred seventeen".