Shiva Purana
कोटिवारं तदर्धं वा तदर्धं वा जपेच्छिवम् ॥ लक्षविंशतिकं वापि दशलक्षमथापि वा ॥ १६ ॥
One should chant Lord Śiva one crore times or one and a half times. Twenty lakhs or ten lakhs.
english translation
koTivAraM tadardhaM vA tadardhaM vA japecchivam ॥ lakSaviMzatikaM vApi dazalakSamathApi vA ॥ 16 ॥
hk transliteration by Sanscript