12424021121 has 8 divisors (see below), whose sum is σ = 12510457344. Its totient is φ = 12337808080.

The previous prime is 12424021091. The next prime is 12424021151. The reversal of 12424021121 is 12112042421.

It is an interprime number because it is at equal distance from previous prime (12424021091) and next prime (12424021151).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12424021121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12424021093 and 12424021102.

It is not an unprimeable number, because it can be changed into a prime (12424021151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56711 + ... + 167523.

It is an arithmetic number, because the mean of its divisors is an integer number (1563807168).

Almost surely, 2^12424021121 is an apocalyptic number.

It is an amenable number.

12424021121 is a deficient number, since it is larger than the sum of its proper divisors (86436223).

12424021121 is a wasteful number, since it uses less digits than its factorization.

12424021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111591.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12424021121 its reverse (12112042421), we get a palindrome (24536063542).

The spelling of 12424021121 in words is "twelve billion, four hundred twenty-four million, twenty-one thousand, one hundred twenty-one".