This image is heavy; it may take 5–10 minutes to fully boot and reach the CLI.
The "7.2.2" in the filename refers to the software version, which is a point release of the IOS XE software.
Once legally obtained:
While earlier versions supported EVPN, the 7.2.2 fullk9 image resolves critical memory leaks in the L2RIB process. It allows up to 16k EVPN routes in a virtual instance.