as you are not really talking about HANA Studio (like the other answer here assumes), but about the HANA client (package), you can check note 1906576 which describes the compatibility between HANA client packages and the HANA server versions.
Extract from note:
So in your case you can take the latest revision (120) of HANA Client 1.0.
Tthe HANA 1.00.122 means that the server is on HANA1 SP12. This version does not need to match the HANA client per se. since you are showing SP12 for your server, try to get the latest revision shown here 112. ideally, you should start using the SAP Web IDE instead of HANA studio. Just a little bit of further detail... HANA studio is nothing else than Eclipse with a few additional plug ins.