This is likely a variant listing for Tchaikovsky's Piano Sonata No. 1, movement I, despite the listed key. It is characterized by its powerful, virtuosic passagework and contrasting lyrical themes, showcasing Tchaikovsky's dramatic flair.
Developing the rapid scales and arpeggios with clarity and evenness is a primary technical focus.
Allegro vivace in B flat major is rated Henle level 7 of 9 — late advanced repertoire, roughly ABRSM grade 8 and above. In the RCM system it corresponds to about level 9.
You should be comfortable at Henle level 7 — meaning you can already play level 6–7 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
A typical performance of Allegro vivace in B flat major lasts about 6 minutes.
Allegro vivace in B flat major is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.