Hat diese seit ihrer Kindheit auf die Torlagerung gespielt. Sind diese selten?

You can research this yourself, like:

https://www.google.com/search?hl=en&source=hp&q=20+millionen+mark+d%C3%BCsseldorf

Or just go to ebay.de/com, type in the major information of a note and then compare the images of the search result with what you got.

Isn’t the guy on the 10000 Mark note the same who later appeared on the 10 Mark note?

The Mark banknotes with millions aren’t that rare. In fact, a hyperinflation needs banknotes to be printed in massive numbers to occur.

If the banknotes had trillions on them or were stamped over, they’d be worth a bit more, but even then not that outrageously much. A couple years ago those rarer ones would be €50.

The one from Düsseldorf might be worth more than the others, bit even then it’s less than €10.