I've generated a private key using
vanitygen command by:
$ ./vanitygen 11 Difficulty: 256 Pattern: 11 Address: 114beUkusDnzqxif5BbESZMNo6T5N27... Privkey: 5JeApQGQCCEp1K3rjXr8vDcEWMFw2Agzj2YZnN51zZC37Sw7...
Is it possible to convert a generated Privkey to BIP39 mnemonic words or entropy (hex)?
As the app/wallet which I'm using only accept BIP39 mnemonic words to import a wallet and I would like to create a wallet using a