Henrike is the German feminine form of Heinrich — from the Germanic heim (home) + rik (ruler). Henrike Heiland — German novelist. Henrike Bohlmann — German biographical figure.
Henrike does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Henrike reduce to 7, The Seeker. This is a traditional interpretive system, not a factual claim about the name.