100112121111212 has 48 divisors (see below), whose sum is σ = 208813842413568. Its totient is φ = 41093103029760.

The previous prime is 100112121111199. The next prime is 100112121111251. The reversal of 100112121111212 is 212111121211001.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 594434078 + ... + 594602469.

It is an arithmetic number, because the mean of its divisors is an integer number (4350288383616).

Almost surely, 2^{100112121111212} is an apocalyptic number.

It is an amenable number.

100112121111212 is an abundant number, since it is smaller than the sum of its proper divisors (108701721302356).

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

100112121111212 is a wasteful number, since it uses less digits than its factorization.

100112121111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189036686 (or 1189036684 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 100112121111212 its reverse (212111121211001), we get a palindrome (312223242322213).

The spelling of 100112121111212 in words is "one hundred trillion, one hundred twelve billion, one hundred twenty-one million, one hundred eleven thousand, two hundred twelve".