The Size of An Atom

Consider this scaling problem:
A single hydrogen atom at ground state is $1.058$ Å large. This is also represented as $105.8$ picometers or $1.05835442134×10^{-10}$ meters.

It's easy to visualize the number 105.8 or even 106. Much harder to picture $1.05835442134×10^{-10}$. If you blew up a hydrogen atom to the size of a $12.17\text{ cm}$ (or $0.1217$ m) wide grapefruit (an average grapefruit size), and a real grapefruit grew proportionally, approximately how big would the real grapefruit grow to be?