100200212121212 has 36 divisors (see below), whose sum is σ = 203983534390104. Its totient is φ = 42941994127200.

The previous prime is 100200212121211. The next prime is 100200212121253. The reversal of 100200212121212 is 212121212002001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100200212121211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3203087 + ... + 14514137.

It is an arithmetic number, because the mean of its divisors is an integer number (5666209288614).

Almost surely, 2^{100200212121212} is an apocalyptic number.

It is an amenable number.

100200212121212 is an abundant number, since it is smaller than the sum of its proper divisors (103783322268892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100200212121212 is a wasteful number, since it uses less digits than its factorization.

100200212121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11356266 (or 11356257 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 100200212121212 its reverse (212121212002001), we get a palindrome (312321424123213).

The spelling of 100200212121212 in words is "one hundred trillion, two hundred billion, two hundred twelve million, one hundred twenty-one thousand, two hundred twelve".