Okay, not actually that interesting.
Here’s something that is interesting though: In looking it up myself, I discovered that Billion and Trillion are not universal terms, and while in America 1 billion has 9 zeros, in the UK/ parts of EU, it has 12, and from there the number of zeros increases by 6 rather than 3. So 1 trillion in America has 12 zeros, but in Europe it has 18!
USA version (pretty sure also UK version) of million has 6 zeros. Billion is the first to be different