Can I make a QR code of my whatsapp number?
Yes, you can!
In order to make a scannable QR code of your whatsapp number, use the following link:
https://wa.me/[phone number without + or leading zero]
And put that link into a QR code maker of you choice.
Of course, after creating the code, it is best to test whether it works.
Note: If it doesn't work, check if you formatted the phone number correctly.