select datepart(hour, @t) * 10000 + datepart(minute, @t) * 100 + datepart(second, @t)

TIME       HHMMSS    INT
00:00:05   000005    5
00:10:00   001000    1000
01:01:00   010100    10100
10:00:00   100000    100000

Declare @Time Int = 10100

Select  @Time / 10000           As HH,
        (@Time % 10000) / 100   As MM,
        ((@Time % 10000) % 100) As SS

HH  MM  SS
1   1   0