12154122232 has 32 divisors (see below), whose sum is σ = 26067081600. Its totient is φ = 5204402784.

The previous prime is 12154122223. The next prime is 12154122247. The reversal of 12154122232 is 23222145121.

It is a junction number, because it is equal to n+sod(n) for n = 12154122197 and 12154122206.

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, 28182 + ... + 158437.

It is an arithmetic number, because the mean of its divisors is an integer number (814596300).

Almost surely, 2^12154122232 is an apocalyptic number.

It is an amenable number.

12154122232 is an abundant number, since it is smaller than the sum of its proper divisors (13912959368).

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

12154122232 is a wasteful number, since it uses less digits than its factorization.

12154122232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187795 (or 187791 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

Adding to 12154122232 its reverse (23222145121), we get a palindrome (35376267353).

The spelling of 12154122232 in words is "twelve billion, one hundred fifty-four million, one hundred twenty-two thousand, two hundred thirty-two".