111111110212 has 12 divisors (see below), whose sum is σ = 195131527696. Its totient is φ = 55359245160.

The previous prime is 111111110207. The next prime is 111111110233. The reversal of 111111110212 is 212011111111.

It is a junction number, because it is equal to n+sod(n) for n = 111111110192 and 111111110201.

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, 49076214 + ... + 49078477.

Almost surely, 2^111111110212 is an apocalyptic number.

It is an amenable number.

111111110212 is a deficient number, since it is larger than the sum of its proper divisors (84020417484).

111111110212 is a wasteful number, since it uses less digits than its factorization.

111111110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98154978 (or 98154976 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111111110212 its reverse (212011111111), we get a palindrome (323122221323).

The spelling of 111111110212 in words is "one hundred eleven billion, one hundred eleven million, one hundred ten thousand, two hundred twelve".