12422154555 has 24 divisors (see below), whose sum is σ = 21547592352. Its totient is φ = 6620269824.

The previous prime is 12422154499. The next prime is 12422154659. The reversal of 12422154555 is 55545122421.

12422154555 is a `hidden beast` number, since 1 + 2 + 42 + 21 + 545 + 55 = 666.

12422154555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12422154555 - 2¹⁴ = 12422138171 is a prime.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 39454 + ... + 162483.

It is an arithmetic number, because the mean of its divisors is an integer number (897816348).

Almost surely, 2^12422154555 is an apocalyptic number.

12422154555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12422154555 is a deficient number, since it is larger than the sum of its proper divisors (9125437797).

12422154555 is a wasteful number, since it uses less digits than its factorization.

12422154555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203315 (or 203312 counting only the distinct ones).

The product of its digits is 80000, while the sum is 36.

Adding to 12422154555 its reverse (55545122421), we get a palindrome (67967276976).

The spelling of 12422154555 in words is "twelve billion, four hundred twenty-two million, one hundred fifty-four thousand, five hundred fifty-five".