12042224021 has 16 divisors (see below), whose sum is σ = 12413592576. Its totient is φ = 11674800000.

The previous prime is 12042223993. The next prime is 12042224069.

12042224021 is nontrivially palindromic in base 10.

12042224021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12042224021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12042223984 and 12042224002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12042224081) 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 15 ways as a sum of consecutive naturals, for example, 5120996 + ... + 5123346.

It is an arithmetic number, because the mean of its divisors is an integer number (775849536).

Almost surely, 2^12042224021 is an apocalyptic number.

It is an amenable number.

12042224021 is a deficient number, since it is larger than the sum of its proper divisors (371368555).

12042224021 is a wasteful number, since it uses less digits than its factorization.

12042224021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3124.

The product of its (nonzero) digits is 512, while the sum is 20.

The spelling of 12042224021 in words is "twelve billion, forty-two million, two hundred twenty-four thousand, twenty-one".