ll /dev/dsk | grep 052200
The First two hex digits (1f - 31 decimal) denote the major device number. If you do an lsdev, you will note that 31 is the scsi disk block device.
After that it decodes as follows the following hex digits:
05 - c5
2 - t2
2 - d2
00 - the last two minor device digits are driver specific
But yours is: SCSI Block Disk Device, c2t2d2
the last 6 digits are the minor number of the device.