Hi Josh,
Short answer: FRDM-K22F has MK22FN512VLH12 MCU.
Longer answer:
From the Freescale Freedom website pick your FRDM board:
http://www.freescale.com/freedom
Pick the FRDM-K22F
FRDM-K22F|Freedom Development Board|Kinetis|Freescale
This site has the MCU listed as well.
Click on the Downloads tab to go to:
FRDM-K22F|Freedom Development Board|Kinetis|Freescale
Here you can download schematics and other board related material.
In KDS1.1.1 when you do a File->New->Kinetis Design Studio Project under the Processor you want to select MK22F (120MHz) MK22FN512xxx12.
Regards,
David