Assigning A=1, B=2, etc., the letters forming the first and second halves of a word within an even number of letters sometimes make a Numerical Tautonym or a Numerical Palindrome. SPEA.KING=41.41 and POE.TRY=36.63, respectively, are examples of the two genres.
"The Numeracy of Alternate Letters,"
Word Ways: Vol. 42
, Article 28.
Available at: http://digitalcommons.butler.edu/wordways/vol42/iss4/28