102001222201897 has 2 divisors, whose sum is σ = 102001222201898. Its totient is φ = 102001222201896.

The previous prime is 102001222201889. The next prime is 102001222202023. The reversal of 102001222201897 is 798102222100201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93356775461161 + 8644446740736 = 9662131^2 + 2940144^2 .

It is an emirp because it is prime and its reverse (798102222100201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102001222201897 - 2³ = 102001222201889 is a prime.

It is not a weakly prime, because it can be changed into another prime (102001222201867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51000611100948 + 51000611100949.

It is an arithmetic number, because the mean of its divisors is an integer number (51000611100949).

Almost surely, 2^{102001222201897} is an apocalyptic number.

It is an amenable number.

102001222201897 is a deficient number, since it is larger than the sum of its proper divisors (1).

102001222201897 is an equidigital number, since it uses as much as digits as its factorization.

102001222201897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 102001222201897 in words is "one hundred two trillion, one billion, two hundred twenty-two million, two hundred one thousand, eight hundred ninety-seven".