12021143121224 has 32 divisors (see below), whose sum is σ = 22551552576000. Its totient is φ = 6007396224192.

The previous prime is 12021143121173. The next prime is 12021143121227. The reversal of 12021143121224 is 42212134112021.

It is a junction number, because it is equal to n+sod(n) for n = 12021143121193 and 12021143121202.

It is not an unprimeable number, because it can be changed into a prime (12021143121227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330332822 + ... + 330369210.

It is an arithmetic number, because the mean of its divisors is an integer number (704736018000).

Almost surely, 2^{12021143121224} is an apocalyptic number.

It is an amenable number.

12021143121224 is a deficient number, since it is larger than the sum of its proper divisors (10530409454776).

12021143121224 is a wasteful number, since it uses less digits than its factorization.

12021143121224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57077 (or 57073 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 12021143121224 its reverse (42212134112021), we get a palindrome (54233277233245).

The spelling of 12021143121224 in words is "twelve trillion, twenty-one billion, one hundred forty-three million, one hundred twenty-one thousand, two hundred twenty-four".