12122223123 has 32 divisors (see below), whose sum is σ = 16895983104. Its totient is φ = 7725549312.

The previous prime is 12122223119. The next prime is 12122223151. The reversal of 12122223123 is 32132222121.

It is not a de Polignac number, because 12122223123 - 2² = 12122223119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12122223123.

It is not an unprimeable number, because it can be changed into a prime (12122223103) 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, 957090 + ... + 969672.

It is an arithmetic number, because the mean of its divisors is an integer number (527999472).

Almost surely, 2^12122223123 is an apocalyptic number.

12122223123 is a deficient number, since it is larger than the sum of its proper divisors (4773759981).

12122223123 is a wasteful number, since it uses less digits than its factorization.

12122223123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12795.

The product of its digits is 576, while the sum is 21.

Adding to 12122223123 its reverse (32132222121), we get a palindrome (44254445244).

The spelling of 12122223123 in words is "twelve billion, one hundred twenty-two million, two hundred twenty-three thousand, one hundred twenty-three".