Mini2 - file names of the JPG and MP4

[Ian UK]

Does anybody know if there is any meaning to the long file names I get for the photos and videos I get from the Mini 2?
For example, I have these:
Video_6553848_DJI_248_mp4_1977156850_158000_202129125330_video_original.mp4
Photo_6553734_DJI_134_jpg_4394676_0_2021117133822_photo_original.jpg

If I break these down, I can see the date and time is there.
202129125330 = 2021 2 9 12 53 30
2021117133822 = 2021 1 1 13 38 22
It is a bit annoying the leading zero is missing from the month and date.

But my question is: does anybody know what the other number mean?
6553848, 1977156850_158000
I wonder if they are coordinates or GPS data but there doesn't seem any pattern or consistency to them.
DJI must have put them there for some reason and they must mean something!
Any ideas please?

 

[Meta4]

Does anybody know if there is any meaning to the long file names I get for the photos and videos I get from the Mini 2?
For example, I have these:
Video_6553848_DJI_248_mp4_1977156850_158000_202129125330_video_original.mp4

DJI's normal filename whether still or video is something like this:
DJI_0630.JPG or DJI_0630.MP4
Are you looking at the actual image files that are saved on the SD card?
Or are you looking at smaller cached image files?