112112221123 has 32 divisors (see below), whose sum is σ = 137308953600. Its totient is φ = 89404217856.

The previous prime is 112112221099. The next prime is 112112221157. The reversal of 112112221123 is 321122211211.

It is a cyclic number.

It is not a de Polignac number, because 112112221123 - 2²¹ = 112110123971 is a prime.

It is a super-2 number, since 2×112112221123² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 112112221123.

It is not an unprimeable number, because it can be changed into a prime (112112221523) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2237418 + ... + 2286976.

It is an arithmetic number, because the mean of its divisors is an integer number (4290904800).

Almost surely, 2^112112221123 is an apocalyptic number.

112112221123 is a deficient number, since it is larger than the sum of its proper divisors (25196732477).

112112221123 is a wasteful number, since it uses less digits than its factorization.

112112221123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49891.

The product of its digits is 96, while the sum is 19.

Adding to 112112221123 its reverse (321122211211), we get a palindrome (433234432334).

The spelling of 112112221123 in words is "one hundred twelve billion, one hundred twelve million, two hundred twenty-one thousand, one hundred twenty-three".