112012221123 has 12 divisors (see below), whose sum is σ = 176504106168. Its totient is φ = 67886194560.

The previous prime is 112012221071. The next prime is 112012221239. The reversal of 112012221123 is 321122210211.

It is not a de Polignac number, because 112012221123 - 2²¹ = 112010123971 is a prime.

It is a super-2 number, since 2×112012221123² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 112012221096 and 112012221105.

It is not an unprimeable number, because it can be changed into a prime (112012221023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 565718190 + ... + 565718387.

It is an arithmetic number, because the mean of its divisors is an integer number (14708675514).

Almost surely, 2^112012221123 is an apocalyptic number.

112012221123 is a deficient number, since it is larger than the sum of its proper divisors (64491885045).

112012221123 is a wasteful number, since it uses less digits than its factorization.

112012221123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131436594 (or 1131436591 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 112012221123 its reverse (321122210211), we get a palindrome (433134431334).

The spelling of 112012221123 in words is "one hundred twelve billion, twelve million, two hundred twenty-one thousand, one hundred twenty-three".