Moody’s Analytics has found 21 million “red flags” associated with shell companies that could be used to enable financial crimes, from ancient directors to dubious addresses.

For instance, more than 2,200 companies have directors aged 123 years and above, despite the fact that the oldest known human lived to 122, said Richard Graham, a director at Moody’s Analytics, in research published Monday. One listed director — at 942 years old — would have been born in the 11th century.