Certificate for one IP address without domain name

Help
1

I have a IP address, for example, 67.43.170.9. This IP address is a domain but it doesn't have domain name. Is it possible to get a certificate for this IP address? Thanks in advance.

2

I have no idea what this means.

Not from Let's Encrypt at this time. See also:

3

i think no, but without a domain you can use a dynamic dns service.
there are many providers

5

There are also domain registrars that offer free domains such as Freenom. Though Freenom specifically has had the occasional issue with their TLD DNS servers that temporarily prevent issuance.