112122221122 has 16 divisors (see below), whose sum is σ = 170236446912. Its totient is φ = 55376951760.

The previous prime is 112122221087. The next prime is 112122221149. The reversal of 112122221122 is 221122221211.

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 112122221122.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1075843 + ... + 1175449.

It is an arithmetic number, because the mean of its divisors is an integer number (10639777932).

Almost surely, 2^112122221122 is an apocalyptic number.

112122221122 is a deficient number, since it is larger than the sum of its proper divisors (58114225790).

112122221122 is an equidigital number, since it uses as much as digits as its factorization.

112122221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106473.

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

Adding to 112122221122 its reverse (221122221211), we get a palindrome (333244442333).

The spelling of 112122221122 in words is "one hundred twelve billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty-two".