111010212112 has 20 divisors (see below), whose sum is σ = 219140443980. Its totient is φ = 54457839488.

The previous prime is 111010212107. The next prime is 111010212119. The reversal of 111010212112 is 211212010111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 60396011536 + 50614200576 = 245756^2 + 224976^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111010212092 and 111010212101.

It is not an unprimeable number, because it can be changed into a prime (111010212119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65453287 + ... + 65454982.

It is an arithmetic number, because the mean of its divisors is an integer number (10957022199).

Almost surely, 2^111010212112 is an apocalyptic number.

It is an amenable number.

111010212112 is a deficient number, since it is larger than the sum of its proper divisors (108130231868).

111010212112 is a wasteful number, since it uses less digits than its factorization.

111010212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130908330 (or 130908324 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111010212112 its reverse (211212010111), we get a palindrome (322222222223).

The spelling of 111010212112 in words is "one hundred eleven billion, ten million, two hundred twelve thousand, one hundred twelve".