numbers => [null, eins/ein, zwei, drei, vier, fünf, sechs, sieben, acht, neun, zehn, elf, zwölf, 16 => sechzehn, 17 => siebzehn, 20 => zwanzig, 30 => dreißig, 40 => vierzig, 60 => sechzig, 70 => siebzig ] rules => [ 50,80,90 => {digit}zig, 13-15,18,19 => {digit}zehn, 21-99 => {digit}und{ten}, 100,200,300,400,500,600,700,800,900 => {digit}hundert ] exponents => [ singular => [tausend, Million, Milliarde, Billion], plural => [tausend, Millionen, Milliarden, Billionen] ] separator => ''