112221221212 has 12 divisors (see below), whose sum is σ = 196410201120. Its totient is φ = 56104020896.

The previous prime is 112221221131. The next prime is 112221221303. The reversal of 112221221212 is 212122122211.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 112221221212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1609012 + ... + 1677307.

It is an arithmetic number, because the mean of its divisors is an integer number (16367516760).

Almost surely, 2^112221221212 is an apocalyptic number.

It is an amenable number.

112221221212 is a deficient number, since it is larger than the sum of its proper divisors (84188979908).

112221221212 is a wasteful number, since it uses less digits than its factorization.

112221221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3294860 (or 3294858 counting only the distinct ones).

The product of its digits is 128, while the sum is 19.

Adding to 112221221212 its reverse (212122122211), we get a palindrome (324343343423).

Subtracting 112221221212 from its reverse (212122122211), we obtain a palindrome (99900900999).

The spelling of 112221221212 in words is "one hundred twelve billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred twelve".