from http://www.wisegeek.org/how-many-countr ... -world.htm193 by the count of the United Nations. 201 by a tight interpretation of the Montevideo Conventions. Somewhere over 220 by a looser interpretation. And if we were to go by the number of countries that have their own domain suffix — such as .us for the United States, or .de for Germany — we would find 243. So there is no firm answer, but 193 is commonly accepted, and somewhere between 193 and 250 seems rather certain.
250 minus number of accepted countries = 75 ish countries where paypal is pointless and bitcoin is cool. So my vague guess was inaccurate ? woopee. I didn't have any money on it.