12122553252 has 24 divisors (see below), whose sum is σ = 28353477600. Its totient is φ = 4031205376.

The previous prime is 12122553217. The next prime is 12122553253. The reversal of 12122553252 is 25235522121.

It is not an unprimeable number, because it can be changed into a prime (12122553253) 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, 1200477 + ... + 1210532.

It is an arithmetic number, because the mean of its divisors is an integer number (1181394900).

Almost surely, 2^12122553252 is an apocalyptic number.

12122553252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12122553252 is an abundant number, since it is smaller than the sum of its proper divisors (16230924348).

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

12122553252 is a wasteful number, since it uses less digits than its factorization.

12122553252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2411435 (or 2411433 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The spelling of 12122553252 in words is "twelve billion, one hundred twenty-two million, five hundred fifty-three thousand, two hundred fifty-two".