Does 21m mean 21 millions here?

Context:

Will it ever be a mainstream currency?

Economists and developers point to several flaws in the implementation of Bitcoin which render it unsuitable for widespread use. One problem is that the currency has deflation built in to its very core: only 21m bitcoins will ever be produced, and we're already halfway there. Most economists believe deflation is disastrous for an economy, but the Austrian school of economics, beloved by the libertarian creators of Bitcoin, disagrees.