  It is demonstrated that the fullerene shell affects dramatically the
radiative and Auger vacancy decay of an endohedral atom A@C60. The
collectivized electrons of the C60 shell add new possibilities for radiative
and non-radiative decays similar to that in ordinary atoms where initial and
final state vacancies almost always belong to different subshells. It is shown
that the smallness of the atomic shell radii as compared to that of the
fullerenes shell provides an opportunity to derive the simple formulas for the
probabilities of the electron transitions. It is shown that the radiative and
Auger (or Koster-Kronig) widths of a vacancy decay due to electron transition
in the atom A in A@C60 acquire an additional factors that can be expressed via
the polarizability of the C60 at transition energy. It is demonstrated that due
to opening of the non-radiative decay channel for vacancies in subvalent
subshells the decay probability increases by five -- six orders of magnitude.
