It is an unprimeable number.
Almost surely, 2101505040044612 is an apocalyptic number.
101505040044612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
101505040044612 is a wasteful number, since it uses less digits than its factorization.
101505040044612 is an evil number, because the sum of its binary digits is even.
Adding to 101505040044612 its reverse (216440040505101), we get a palindrome (317945080549713).
The spelling of 101505040044612 in words is "one hundred one trillion, five hundred five billion, forty million, forty-four thousand, six hundred twelve".