Is XRP an ERC-20?

Could you please clarify for me, is XRP considered an ERC-20 token? I've been hearing a lot about ERC-20 standards in the cryptocurrency world and I'm trying to understand the specifics of XRP in this context. As I understand, ERC-20 tokens are built on the Ethereum blockchain, but XRP seems to have its own independent infrastructure. Could you explain the difference between XRP and ERC-20 tokens, and whether XRP falls into the ERC-20 category or not? I'm interested in understanding the technical distinctions and how they impact the usage and functionality of these tokens.