Adding to 20000000100 its reverse (100000002), we get a palindrome (20100000102).
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
It is an unprimeable number.
Almost surely, 220000000100 is an apocalyptic number.
20000000100 is a gapful number since it is divisible by the number (20) 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.
20000000100 is a wasteful number, since it uses less digits than its factorization.
20000000100 is an evil number, because the sum of its binary digits is even.
The spelling of 20000000100 in words is "twenty billion, one hundred", and thus it is an aban number.