12122004402 has 32 divisors (see below), whose sum is σ = 26943508800. Its totient is φ = 4039809984.

The previous prime is 12122004353. The next prime is 12122004403. The reversal of 12122004402 is 20440022121.

12122004402 is a `hidden beast` number, since 1 + 2 + 1 + 220 + 0 + 440 + 2 = 666.

12122004402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12122004403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264849 + ... + 307227.

It is an arithmetic number, because the mean of its divisors is an integer number (841984650).

Almost surely, 2^12122004402 is an apocalyptic number.

12122004402 is an abundant number, since it is smaller than the sum of its proper divisors (14821504398).

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

12122004402 is a wasteful number, since it uses less digits than its factorization.

12122004402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47687 (or 47681 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 12122004402 its reverse (20440022121), we get a palindrome (32562026523).

The spelling of 12122004402 in words is "twelve billion, one hundred twenty-two million, four thousand, four hundred two".