Is aweness a word

No. -ness is a suffix that can be added to adjectives to create an abstract noun meaning the quality or state expressed by that adjective. For example, crazy is an adjective, and craziness is an abstract noun that means the quality or state of being crazy. Awe is itself an abstract noun, not an adjective, so you can't add -ness to it. If you're looking for a word that means "the state of being filled with awe," then the word you are looking for is awe. If you're looking for a word that means "the quality of inspiring awe in others," then the word you are looking for is awesomeness.