**2532195**

Assumed it reads x^2 + 3xyz + 2y^2 + 3z^2 (<<2y^2>>)

122, 119, 118, 114, 110, 97, 93, 87, 87, 83, 48

Mean = sum/count= 98

Median= middle term= 97

Mode= number given maximum number of times= 87 (appears 2 times)

x^2 + 3xyz + 2y^2 + 3z^2=98^2+3*98*97*87+2*97^2+3*87^2=**2532195**