12123204222 has 16 divisors (see below), whose sum is σ = 24353223552. Its totient is φ = 4023265560.

The previous prime is 12123204221. The next prime is 12123204287. The reversal of 12123204222 is 22240232121.

12123204222 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123204221) 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 7 ways as a sum of consecutive naturals, for example, 4449154 + ... + 4451877.

It is an arithmetic number, because the mean of its divisors is an integer number (1522076472).

Almost surely, 2^12123204222 is an apocalyptic number.

12123204222 is an abundant number, since it is smaller than the sum of its proper divisors (12230019330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12123204222 is a wasteful number, since it uses less digits than its factorization.

12123204222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8901263.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12123204222 its reverse (22240232121), we get a palindrome (34363436343).

The spelling of 12123204222 in words is "twelve billion, one hundred twenty-three million, two hundred four thousand, two hundred twenty-two".