Square Deal

Wordplay maven Dave Morice discovered something strange in 1992: Write out the three-letter word ONE, and beneath it write out the next odd number whose name is spelled with four letters, then the next spelled with five letters, and so on up to TWENTY-ONE, which has nine letters. Then, in a separate column, do the same with even numbers, from the three-letter TWO to the nine-letter TWENTY-TWO — but list these in reverse order:

square deal

Now each line contains 12 letters — and in each instance the numbers named total 23! What does this mean?