  The multiorbital Hubbard model in the strong coupling limit is analyzed for
the effectively antiferromagnetic Hund's coupling relevant to fulleride
superconductors with three orbitals per molecule. The localized spin-orbital
model describes the thermodynamics of the half-filled (three-electron) state
with total spin-1/2, composed of singlon and doublon placed on the two of three
orbitals. The model is solved using the mean-field approximation and magnetic
and electric ordered states are clarified through the temperature dependences
of the order parameters. Combining the model with the band structure from {\it
ab initio} calculation, we also semi-quantitavely analyze the realistic model
and the corresponding physical quantities. In the A15-structure fulleride
model, there is an antiferromagnetic ordered state, and subsequently the two
orbital ordered state appears at lower temperatures. It is argued that the
origin of these orbital orders is related to the $T_h$ point group symmetry. As
for the fcc-fulleride model, the time-reversal broken orbital ordered state is
identified. Whereas the spin degeneracy remains in our treatment for the
geometrically frustrated lattice, it is expected to be lifted by some magnetic
ordering or quantum fluctuations, but not by the spin-orbital coupling which is
effectively zero for fullerides in the strong-coupling regime.
