111110121212 has 12 divisors (see below), whose sum is σ = 194555706576. Its totient is φ = 55522776480.

The previous prime is 111110121203. The next prime is 111110121259. The reversal of 111110121212 is 212121011111.

It is a super-3 number, since 3×111110121212³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8063288 + ... + 8077055.

It is an arithmetic number, because the mean of its divisors is an integer number (16212975548).

Almost surely, 2^111110121212 is an apocalyptic number.

It is an amenable number.

111110121212 is a deficient number, since it is larger than the sum of its proper divisors (83445585364).

111110121212 is a wasteful number, since it uses less digits than its factorization.

111110121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16142068 (or 16142066 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111110121212 its reverse (212121011111), we get a palindrome (323231132323).

The spelling of 111110121212 in words is "one hundred eleven billion, one hundred ten million, one hundred twenty-one thousand, two hundred twelve".