Here is a page where you can enter numbers in figures and see the German words. It starts with a box telling you the name for 1 plus 1, 2, 3 etc. noughts. One hundred noughts is zehn Sexdezilliarden or a Googol.
There is more to Arndt Brünner’s mathematical scripts than meets the eye or the brain, at least mine, although readers of a mathematical (philosophical, linguistic) bent may see it otherwise. Small arrows are links to other pages, at all events.
Something like this must exist in English, but I am too thick to find it. Here are some words to think about maths, though: ABC Mathematics.
(Thanks to Andrea on the jur_Übs list at Yahoo)