112212012 has 72 divisors (see below), whose sum is σ = 290844400. Its totient is φ = 33644160.

The previous prime is 112212007. The next prime is 112212017. The reversal of 112212012 is 210212211.

It is an interprime number because it is at equal distance from previous prime (112212007) and next prime (112212017).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (112212017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157914 + ... + 158622.

Almost surely, 2^112212012 is an apocalyptic number.

112212012 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 112212012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145422200).

112212012 is an abundant number, since it is smaller than the sum of its proper divisors (178632388).

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

112212012 is a wasteful number, since it uses less digits than its factorization.

112212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 112212012 is about 10593.0171339425. The cubic root of 112212012 is about 482.3324153342.

Adding to 112212012 its reverse (210212211), we get a palindrome (322424223).

The spelling of 112212012 in words is "one hundred twelve million, two hundred twelve thousand, twelve".