Adding to 100212112210220 its reverse (22012211212001), we get a palindrome (122224323422221).
It is an unprimeable number.
Almost surely, 2100212112210220 is an apocalyptic number.
100212112210220 is a gapful number since it is divisible by the number (10) 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.
100212112210220 is a wasteful number, since it uses less digits than its factorization.
100212112210220 is an evil number, because the sum of its binary digits is even.
The spelling of 100212112210220 in words is "one hundred trillion, two hundred twelve billion, one hundred twelve million, two hundred ten thousand, two hundred twenty".