Adeola is from the Yoruba adé (crown) + olá (wealth, honor) — crown of wealth or royal honor. Adeola is one of the Yoruba royal-honorific feminine names — used across the Yoruba diaspora.
Adeola 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.
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In Pythagorean numerology the letters of Adeola reduce to 2, The Peacemaker. This is a traditional interpretive system, not a factual claim about the name.