Britney Spears -- She's Worth a FORTUNE

Britney Spears is crazy like a fox, because she's accumulated a fortune ... way MORE THAN $32 million ... TMZ has learned.

According to new docs filed in her conservatorship case, as of December 31, 2010, the conservators reported assets totaling $32,376,140.90. Sources connected with the conservatorship tell TMZ, that figure does not include a number of valuable assets.

On top of that, since 2010, Britney had a successful concert tour that raked in $68 million and she signed a $15 million deal with "X Factor."

Now get this. We also got the lowdown on what Britney spent in 2010 alone. The items include:

-- Child Support and Care: $303,673.72
-- Cleaning expenses: $27,265
-- Personal grooming and wardrobe: $61,295.12
-- Automobile expenses: $59,351.92 (and she didn't even buy a car that year)
-- Rent for Calabasas house: $19,000 a month
-- Electric Bill: $5,629.43 in just one month
-- Gas Bill: $1,841 in just one month
-- Water Bill: $2,278.27 in just one month

One thing's for sure ... Britney isn't cash poor. As of the end of 2010, she had cash on hand totaling $14,740,566.71.