An Interesting Pair of Equations

What’s so special about the number 441?

(Regarding a brief discussion we had – last night)

Note these two facts below:
21 x 21 = 441
12 x 12 = 144

That is,

Reading “backwards” (from ‘right to left’),
the equation “21 x 21 = 441”
yields “144 = 12 x 12”
which is the latter equation.

Interesting isn’t it?