Photoshop :: Printing Large Format Setup

I have this photo here as an example and its specs are:
 
2200 x 2134 px 300 dpi
cm 17.8 cm 18 cm
 
if I was asked to do a large banner for example 10 meters x 10 meters(i'm converting 10 meters to pixels and I get :37795.275590551) to go on a building wall.the fact that the photo is 300dpi would that be efficient enough to get a good result without pixelation? or do the pixels within the image need to be even more to secure a better print? if the pixels were double the amount would that be more efficient for example 6000 pixels x 6000 pixels does that secure crystal clear print? I read in various forums that the distance would also play a large role,in order to set the resolution value.