112012223112 has 160 divisors (see below), whose sum is σ = 317338738200. Its totient is φ = 36910080000.

The previous prime is 112012223069. The next prime is 112012223129. The reversal of 112012223112 is 211322210211.

It can be written as a sum of positive squares in 4 ways, for example, as 105057663876 + 6954559236 = 324126^2 + 83394^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 69963112 + ... + 69964712.

Almost surely, 2^112012223112 is an apocalyptic number.

112012223112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 112012223112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158669369100).

112012223112 is an abundant number, since it is smaller than the sum of its proper divisors (205326515088).

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

112012223112 is a wasteful number, since it uses less digits than its factorization.

112012223112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2789 (or 2776 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 112012223112 its reverse (211322210211), we get a palindrome (323334433323).

The spelling of 112012223112 in words is "one hundred twelve billion, twelve million, two hundred twenty-three thousand, one hundred twelve".