first go to a number generator such as :
http://textmechanic.com/Generate-List-of-Numbers.html
generate the list of numbers you want as file names with a comma at the end of each number. Go into the open tool menu and remove the line breaks of your list. So for example you will end up with a large list of numbers like "1222,1223,1224,1225,etc". Make sure the numbers are listed horizontially and not in a list (again use the page break tool).
Next, open up your command prompt (click Start, point to All Programs, point to Accessories, and then click Command Prompt)
Next we want to tell the command prompt where to put our new folders, so type in for example:
cd /d c:\users\public
and hit enter.
Next we want to create the folders.
Type: for %d in (PASTE NUMBERS HERE) do mkdir %d
Between the parenthesis where it says "PASTE NUMBERS HERE" we want to paste the numbers we generated from the list. Again make sure there is a comma between each number. So it should look like :
for %d in (1222,1223,1224,1225) do mkdir %d
Hit enter and you should have the folders in the spot you specified earlier.
It might sound a bit complicated but it's really pretty easy once you go through it once.