How to see UNICODE character number?

[Yuri]

> > All programs just show the character itself when I paste it :-)
> 
> Have you tried kcharselect ?

Tried it now. When I paste the character to the box in the bottom and press
Enter nothing happens.
I would like to see it's UNICODE number (like &9991;)

But it goes the opposite way: from UNICODE number to the character.
The problem though that there are ~20K Chinese characters in UNICODE table.

Yuri