There is a free online tool for spell checking in several languages including Spanish. It is a net site called Spellcheck. Type in whole paragraphs or simple words and it will return the results quickly.
One thousand (1000) is mil in Spanish.
Six-point-one
100
That's un amor.
One-thousand one-hundered fif-teen
The term "no one" is "nadie." (NAH-dee-ay)
One term for it is "Centro comercial."
Nochebuena, in one word.
You could say "No hay nadie allí".
cuarenta y uno (or -a if it feminine)
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"Uno" is Spanish for the number "one". The number one in German is "ein".