1100112222012 has 48 divisors (see below), whose sum is σ = 2570267481600. Its totient is φ = 366227326080.

The previous prime is 1100112221977. The next prime is 1100112222017. The reversal of 1100112222012 is 2102222110011.

It is a junction number, because it is equal to n+sod(n) for n = 1100112221982 and 1100112222000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100112222017) 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 15 ways as a sum of consecutive naturals, for example, 41517664 + ... + 41544152.

It is an arithmetic number, because the mean of its divisors is an integer number (53547239200).

Almost surely, 2^{1100112222012} is an apocalyptic number.

1100112222012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1100112222012 is an abundant number, since it is smaller than the sum of its proper divisors (1470155259588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1100112222012 is a wasteful number, since it uses less digits than its factorization.

1100112222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30866 (or 30864 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1100112222012 its reverse (2102222110011), we get a palindrome (3202334332023).

The spelling of 1100112222012 in words is "one trillion, one hundred billion, one hundred twelve million, two hundred twenty-two thousand, twelve".