I don't know if this holds for all states, but my state--Pennsylvania--allows lottery winners to claim the prize via trusts. In these cases lawyers representing the client claim the prize in the name of the trust, which is given a meaningless name like "Smithville Lottery Winners Trust".

This is correct: a billion = 1,000 million. The current Wikipedia article in English states this clearly. In current usage, one million million = trillion.

Some states allow the winners to remain anonymous. My state--Pennsylvania--does not, but winners of large Powerball jackpots have been able to claim prizes anonymously using what are called a trust. In these cases the lawyers representing the winner claim the prize for the trust. So it involves some red tape and legal fees, but I would go that route to keep my name from going public.

I recently read Artemis and I find your summary/review spot-on.

I look forward to seeing this in the Louvre someday.