102102212220997 has 2 divisors, whose sum is σ = 102102212220998. Its totient is φ = 102102212220996.

The previous prime is 102102212220989. The next prime is 102102212221007. The reversal of 102102212220997 is 799022212201201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99481653454401 + 2620558766596 = 9974049^2 + 1618814^2 .

It is a cyclic number.

It is not a de Polignac number, because 102102212220997 - 2³ = 102102212220989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102102212020997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51051106110498 + 51051106110499.

It is an arithmetic number, because the mean of its divisors is an integer number (51051106110499).

Almost surely, 2^{102102212220997} is an apocalyptic number.

It is an amenable number.

102102212220997 is a deficient number, since it is larger than the sum of its proper divisors (1).

102102212220997 is an equidigital number, since it uses as much as digits as its factorization.

102102212220997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 102102212220997 in words is "one hundred two trillion, one hundred two billion, two hundred twelve million, two hundred twenty thousand, nine hundred ninety-seven".