We present millimeter and submillimeter wavelength observations and near-infrared K -band imaging toward the bright gamma-ray burst GRB 010222 .
Over seven epochs the flux density of the source was constant with an average flux density 3.74 \pm 0.53 mJy at 350 GHz and 1.05 \pm 0.22 mJy at 250 GHz , giving a spectral index \alpha = 3.78 \pm 0.25 ( where F \propto { \nu } ^ { \alpha } ) .
We rule out the possibility that this emission originated from the burst or its afterglow and we conclude that it is due to a dusty , high redshift starburst galaxy ( SMM J14522+4301 ) .
We argue that the host galaxy of GRB 010222 is the most plausible counterpart of SMM J14522+4301 , based in part on the centimeter detection of the host at the expected level .
The optical/NIR properties of the host galaxy of GRB 010222 suggest that it is a blue , sub-L _ { * } , similar to other GRB host galaxies .
This contrasts with the enormous far-infrared luminosity of this galaxy based on our submillimeter detection ( L _ { Bol } \approx 4 \times 10 ^ { 12 } L _ { \odot } ) .
We suggest that this GRB host galaxy has a very high star formation rate , SFR \approx 600 M _ { \odot } yr ^ { -1 } , most of which is unseen at optical wavelengths .