111100212111212 has 12 divisors (see below), whose sum is σ = 194462839986240. Its totient is φ = 55539400686576.

The previous prime is 111100212111197. The next prime is 111100212111247. The reversal of 111100212111212 is 212111212001111.

111100212111212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×111100212111212² (a number of 29 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 2676318908 + ... + 2676360419.

It is an arithmetic number, because the mean of its divisors is an integer number (16205236665520).

Almost surely, 2^{111100212111212} is an apocalyptic number.

It is an amenable number.

111100212111212 is a deficient number, since it is larger than the sum of its proper divisors (83362627875028).

111100212111212 is a wasteful number, since it uses less digits than its factorization.

111100212111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5352684520 (or 5352684518 counting only the distinct ones).

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

Adding to 111100212111212 its reverse (212111212001111), we get a palindrome (323211424112323).

The spelling of 111100212111212 in words is "one hundred eleven trillion, one hundred billion, two hundred twelve million, one hundred eleven thousand, two hundred twelve".