How much Polkadot to be a millionaire?

I've been hearing so much buzz about Polkadot lately and I'm really curious about it. I'm wondering, how much Polkadot do I need to own to become a millionaire? I understand that the price of cryptocurrencies is volatile and unpredictable, but I'm just trying to get a ballpark figure here. Is there a general consensus or estimate among experts in the field? Could you please elaborate on this and provide some insights? It would be great if you could also factor in the potential growth of Polkadot in the future.