12122542321 has 8 divisors (see below), whose sum is σ = 12422124000. Its totient is φ = 11826097920.

The previous prime is 12122542319. The next prime is 12122542373. The reversal of 12122542321 is 12324522121.

12122542321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12122542321 - 2¹ = 12122542319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12122542301) 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 7 ways as a sum of consecutive naturals, for example, 776496 + ... + 791953.

It is an arithmetic number, because the mean of its divisors is an integer number (1552765500).

Almost surely, 2^12122542321 is an apocalyptic number.

It is an amenable number.

12122542321 is a deficient number, since it is larger than the sum of its proper divisors (299581679).

12122542321 is a wasteful number, since it uses less digits than its factorization.

12122542321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568639.

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

The spelling of 12122542321 in words is "twelve billion, one hundred twenty-two million, five hundred forty-two thousand, three hundred twenty-one".