Is Maya polytheistic or monotheistic?

Somebody asked this question on www.ask.com. I wonder what he/she meant by it.

Theism by definition is a belief in God.

The prefix poly or mono depends on how many Gods you believe in.

Maya means illusions or ignorance.

So, is there any relation between theism and maya? I do not see any but if there is any, I am open to answers and opinion. Let's flag off a discussion on this topic.