How many followers on Twitter did Harry Styles have in January 2013?

Explanation

The members of One Direction uses Twitter and so does their loving fans, called Directioners. The band's Twitter ID's are @Harry_Styles, @NiallOfficial, @zaynmalik, @Real_Liam_Payne and @Louis_Tomlinson. Harry has the most followers on Twitter with 1.645.520 in January 2012 grown to 9.911.097 in January 2013. Zayn has the fewest followers as of 2013. The bands page on facebook had 1.968.257 likes in January 2012 which grew to 12.621.165 a year later.