While it would be worth a whole lot more, the hypothetical $1 trillion coin would be struck in a federal government-run mint the same way as any lowly penny or a $1 gold coin, Diehl says.

The U.S. Mint has released the 2024 Harriet Tubman Silver Dollar as part of the Harriet Tubman Commemorative Coin Program. The coins include $5 gold coins, $1 silver coins and half-dollar coins ...