123112222107 has 32 divisors (see below), whose sum is σ = 199921139712. Its totient is φ = 65859413664.

The previous prime is 123112222099. The next prime is 123112222111. The reversal of 123112222107 is 701222211321.

It is a happy number.

It is not a de Polignac number, because 123112222107 - 2³ = 123112222099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123112222007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2688903 + ... + 2734304.

It is an arithmetic number, because the mean of its divisors is an integer number (6247535616).

Almost surely, 2^123112222107 is an apocalyptic number.

123112222107 is a deficient number, since it is larger than the sum of its proper divisors (76808917605).

123112222107 is a wasteful number, since it uses less digits than its factorization.

123112222107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5423287.

The product of its (nonzero) digits is 672, while the sum is 24.

Adding to 123112222107 its reverse (701222211321), we get a palindrome (824334433428).

The spelling of 123112222107 in words is "one hundred twenty-three billion, one hundred twelve million, two hundred twenty-two thousand, one hundred seven".