100111112201212 has 24 divisors (see below), whose sum is σ = 205105693292640. Its totient is φ = 41858304752640.

The previous prime is 100111112201203. The next prime is 100111112201257. The reversal of 100111112201212 is 212102211111001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43602399637 + ... + 43602401932.

It is an arithmetic number, because the mean of its divisors is an integer number (8546070553860).

Almost surely, 2^{100111112201212} is an apocalyptic number.

It is an amenable number.

100111112201212 is an abundant number, since it is smaller than the sum of its proper divisors (104994581091428).

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

100111112201212 is a wasteful number, since it uses less digits than its factorization.

100111112201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87204801621 (or 87204801619 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 100111112201212 its reverse (212102211111001), we get a palindrome (312213323312213).

The spelling of 100111112201212 in words is "one hundred trillion, one hundred eleven billion, one hundred twelve million, two hundred one thousand, two hundred twelve".