Decilion or Decillion: How To spell?

The word Decilion is misspelled against Decillion, a noun meaning "According to the English notation, a million involved to the tenth power, or a unit with sixty ciphers annexed; according to the French and American notation, a thousand involved to the eleventh power, or a unit with thirty-three ciphers annexed. [See the Note under Numeration.]"

Decillion has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings deci & ion which should not be misspelled with single 'L'
Wrong Spelling:  deci-l-ion 
Correct Spelling:  deci-ll-ion 
Find more incorrect spellings of Decillion to spell right way.