If God can cognitively listen to the prayers of 10 million human beings at once, you can pretty much assume He is everywhere. IOW, he knows your every thought.
The one place God is not in all of the universe and all dimensions, is hell.
It therefore follows that God cannot listen to prayers of those in hell, yes?
Therefore, what you are saying is the following - correct me if I am wrong -
Now, God is everywhere. He is EVERYWHERE on earth, he is on the Sun, he is in Mercury, Venus, Jupiter, Uranus (no pun intended, seriously), moon, etc.
BUT, come day of judgement, there is going to be within the universe some place called "HELL". Within this "HELL", God will not be there, yes?
Now, a bit of set theory - come the Day of Judgement, Universe - HELL = Heaven?