12123023222 has 16 divisors (see below), whose sum is σ = 18444754944. Its totient is φ = 5975385000.

The previous prime is 12123023201. The next prime is 12123023251. The reversal of 12123023222 is 22232032121.

It is a happy number.

It is a super-2 number, since 2×12123023222² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12123023194 and 12123023203.

It is a congruent number.

It is an unprimeable number.

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, 113654 + ... + 192777.

It is an arithmetic number, because the mean of its divisors is an integer number (1152797184).

Almost surely, 2^12123023222 is an apocalyptic number.

12123023222 is a deficient number, since it is larger than the sum of its proper divisors (6321731722).

12123023222 is a wasteful number, since it uses less digits than its factorization.

12123023222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306715.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12123023222 its reverse (22232032121), we get a palindrome (34355055343).

The spelling of 12123023222 in words is "twelve billion, one hundred twenty-three million, twenty-three thousand, two hundred twenty-two".