100111110211212 has 24 divisors (see below), whose sum is σ = 235431902232576. Its totient is φ = 33107611250448.

The previous prime is 100111110211193. The next prime is 100111110211219. The reversal of 100111110211212 is 212112011111001.

It is a junction number, because it is equal to n+sod(n) for n = 100111110211191 and 100111110211200.

It is not an unprimeable number, because it can be changed into a prime (100111110211219) 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 7 ways as a sum of consecutive naturals, for example, 32844850908 + ... + 32844853955.

It is an arithmetic number, because the mean of its divisors is an integer number (9809662593024).

Almost surely, 2^{100111110211212} is an apocalyptic number.

100111110211212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100111110211212 is an abundant number, since it is smaller than the sum of its proper divisors (135320792021364).

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

100111110211212 is a wasteful number, since it uses less digits than its factorization.

100111110211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65689704997 (or 65689704995 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 100111110211212 its reverse (212112011111001), we get a palindrome (312223121322213).

The spelling of 100111110211212 in words is "one hundred trillion, one hundred eleven billion, one hundred ten million, two hundred eleven thousand, two hundred twelve".