Bonanza Pilot reported being on the wrong frequency resulting in landing opposite direction with another aircraft. Both aircraft were able to stop and exit the runway.

Narrative

I was in the Bonanza; and coming into land at my home airport; ZZZ. ZZZ is an uncontrolled airport. Winds were calm and visibility was unlimited. I was inbound from the north; following the river for the last 20 miles. I announced several times that I was landing on Runway XX; and did not hear any other aircraft. In ZZZ; Runway XX is the recommended calm wind runway; although AWOS announces it's 'pilot's discretion' as to which direction to land. Immediately after touching down; I noticed an aircraft on the runway coming at me. I decided at that point; to try to stop rather than abort the landing. Taxiway 1 is an exit; approximately half way down the runway. Both aircraft came to a complete stop just before reaching Taxiway 1 from opposite directions. It seemed clear to me for the last 700-800 feet that I traveled; that both of us would be able to stop in time. The other aircraft; a two-place experiential; exited onto Taxiway 1 first; and I then followed. The other aircraft is not hangered at the ZZZ airport; and apparently had just landed on Runway XY. As we approached the taxiway; I tried to reach the other aircraft on the radio. After several failed attempts; I realized my radio was tuned a different frequency; rather than the CTAF. After switching my radio's frequency; I was able to contact the other aircraft.