EDIT - originally compared the last factor to number of grains of sand on Earth squared, but after catching the error above that's much too large.

So how big is the remaining 2x10^12 bombs per seconds?

Wikipedia has some other suggestions:

    ~10^12 stars in the Andromeda galaxy
    1.98x10^12 links on Wikipedia
    3.04×10^12 trees on Earth in 2015
    3.5×10^12 estimated fish in the ocean
   

So take every link on Wikipedia (or two thirds of the trees on Earth), turn each one into the largest hydrogen bomb ever detonated, and blow them all up every second since the beginning of the universe, and that's how much energy we're talking about.

Thanks again to bonzini for spotting the rather large error!