# Value read from plot inconsistent with value from direct evaluation

I have a hypergeometric function. When I plot it, the plotted value at $a=110$ doesn't match the value I get from direct evaluation.

Plot[Hypergeometric2F1[1 + a, 1 - a, 52, .9], {a, 100, 110}]


From the plot, for $a=110$, I got the value of hypergeometric function is $-4.12\times 10^{-7}$. But when I try to find out by direct evaluation of

Hypergeometric2F1[1 + a, 1 - a, 5/2, .9] /. a -> 110


I get $1.7867 \times 10^{15}$.

Hypergeometric2F1[1 + a, 1 - a, 5/2, .9] /. a -> 110

Hypergeometric2F1[1 + a, 1 - a, 5/2, 9/10] /. a -> 110 // N

6.72304*10^-6