111312213112 has 16 divisors (see below), whose sum is σ = 215442993600. Its totient is φ = 53860748160.

The previous prime is 111312213091. The next prime is 111312213137. The reversal of 111312213112 is 211312213111.

It is a self number, because there is not a number n which added to its sum of digits gives 111312213112.

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, 224419537 + ... + 224420032.

It is an arithmetic number, because the mean of its divisors is an integer number (13465187100).

Almost surely, 2^111312213112 is an apocalyptic number.

It is an amenable number.

111312213112 is a deficient number, since it is larger than the sum of its proper divisors (104130780488).

111312213112 is a wasteful number, since it uses less digits than its factorization.

111312213112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448839606 (or 448839602 counting only the distinct ones).

The product of its digits is 72, while the sum is 19.

Adding to 111312213112 its reverse (211312213111), we get a palindrome (322624426223).

Subtracting 111312213112 from its reverse (211312213111), we obtain a palindrome (99999999999).

The spelling of 111312213112 in words is "one hundred eleven billion, three hundred twelve million, two hundred thirteen thousand, one hundred twelve".