Print the odd-numbered pages and then reinsert the pages to print the even-numbered pages. The exact procedure depends on your specific model. The procedure is explained in your printer manual. If you don't have your manual, then not to worry. You can figure it out quickly. Print out a four-page document to see what you need to do.
Check the printer manual and/or look through the print options. It will tell you if this is possible. It may not.
If it isn't able (software drivers) to do this, you have a couple of options.
1. Create a new document from the original in reverse page order.
2. Deal with it, and manually sort the pages.
Sorry, but I don't recall most home use printers with this capability.