112221012 has 36 divisors (see below), whose sum is σ = 278166560. Its totient is φ = 35205504.

The previous prime is 112220921. The next prime is 112221017. The reversal of 112221012 is 210122211.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112221017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12712 + ... + 19647.

Almost surely, 2^112221012 is an apocalyptic number.

112221012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

112221012 is an abundant number, since it is smaller than the sum of its proper divisors (165945548).

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

112221012 is a wasteful number, since it uses less digits than its factorization.

112221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32400 (or 32381 counting only the distinct ones).

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

The square root of 112221012 is about 10593.4419335738. The cubic root of 112221012 is about 482.3453101976.

Adding to 112221012 its reverse (210122211), we get a palindrome (322343223).

The spelling of 112221012 in words is "one hundred twelve million, two hundred twenty-one thousand, twelve".