At his weblog, the Swedish Academy's Nobel point man, Peter Englund, reports Långa listan klar: nominations were due for the 2012 Nobel Prize on 31 January, and he now shares the numbers.
Only 210 authors were (properly) nominated -- but an apparently inordinate number -- 46 -- were first-timers. The Swedish Academy reports that: "There are usually about 350 proposals each year", and Englund reports that this year there were only 288 -- way below usual. (The discrepancy in numbers is explained in a comment: there were 201 "korrekta nomineringar" (i.e. 'correct' ones) -- proposed by those authorized to do so; there were also quite a few "ej godkända nomineringarna" -- not acceptable ones, such as self-nominations, or those by lesser academics, etc. (love that Swedish term: okynnesnomineringarna*).)
Among the other titbits of interest: they requested nominations from a much larger than usual pool of people affiliated with American universities (though the response-rate was apparently somewhat disappointing); on the other hand, an unusually large number of former Nobel laureates, who are automatically eligible to propose names, did throw names into the mix.