Allah the creator, the sustainer of every living creature on earth. He looks after those who believe in him and those who disbelieve in him. No matter what you have done in this life, you can repent and change your bad deeds into good deeds and you can get much more if you believe in Allah and do righteous deeds.
But the question which impose itself: does Allah need us? Does he need our prayers to him? Prophet Muses ( peace be upon him ) answered this question as follows
” And Musa (Moses) said: “If you disbelieve, you and all on earth together, then verily Allah is Rich (Free of all needs), Owner of all Praise.”(A translation of Quran 14:8) Actually we need Allah to enjoy living in this world and paradise in the hereafter but he does not need us.