12123134022 has 32 divisors (see below), whose sum is σ = 24681634560. Its totient is φ = 3968687520.

The previous prime is 12123133999. The next prime is 12123134029. The reversal of 12123134022 is 22043132121.

It is a self number, because there is not a number n which added to its sum of digits gives 12123134022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123134029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216063 + ... + 266325.

It is an arithmetic number, because the mean of its divisors is an integer number (771301080).

Almost surely, 2^12123134022 is an apocalyptic number.

12123134022 is an abundant number, since it is smaller than the sum of its proper divisors (12558500538).

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

12123134022 is a wasteful number, since it uses less digits than its factorization.

12123134022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50988.

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

Adding to 12123134022 its reverse (22043132121), we get a palindrome (34166266143).

The spelling of 12123134022 in words is "twelve billion, one hundred twenty-three million, one hundred thirty-four thousand, twenty-two".