Yes, I know it seems right. But it isn't.
Only put an 's' on million when million is the main noun in a noun phrase, for example when it is at the beginning of a sentence, like this:
..or inside a sentence like this:
In the noun phrase millions of people, millions is the main noun, modified by of people. We know exactly which millions you're talking about - not millions of bananas, for example! The same goes for millions of dollars (not millions of rupiah!).
When million is modifying another noun, don't add an 's':
In the noun phrase 265 million people living in Indonesia, the main noun is people. All of the other words in the phrase give us information about people - how many, and where they live.
The same rule applies to hundred(s), thousand(s), etc.