  We present a long-term X-ray study of a nearby Active Galactic Nucleus Mrk 6,
utilizing observations from XMM-Newton, Suzaku, Swift and NuSTAR observatories,
spanning 22 years from 2001 to 2022. From timing analysis, we estimated
variance, normalized variance, and fractional rms amplitude in different energy
bands.The temporal study shows fractional rms amplitude ($F_{\rm var}$) below
$10\%$ for the shorter timescale $(\sim60 ~\rm ks)$ and above $20\%$ for the
longer timescale ($\sim \rm weeks$ ). A complex correlation is observed between
the soft $(0.5-3.0$ keV) and hard $(3.0-10.0$ keV) X-ray bands of different
epochs of observations. This result prompts a detailed investigation through
spectral analysis, employing various phenomenological and physical models on
the X-ray spectra. Our analysis reveals a heterogeneous structure of the
obscuring material surrounding Mrk 6. A partially ionized absorber exhibits a
rapid change in location and extends up to the narrow line regions or torus. In
contrast, another component, located far from the central engine, remained
relatively stable. During the observation period, the source luminosity in the
3.0--10.0 keV range varies between $(3-15) \times10^{42}$ erg $\rm sec^{-1}$.
