12022320321 has 64 divisors (see below), whose sum is σ = 20603289600. Its totient is φ = 6847545600.

The previous prime is 12022320293. The next prime is 12022320341. The reversal of 12022320321 is 12302322021.

12022320321 is a `hidden beast` number, since 1 + 2 + 0 + 22 + 320 + 321 = 666.

It is not a de Polignac number, because 12022320321 - 2¹⁰ = 12022319297 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12022320294 and 12022320303.

It is not an unprimeable number, because it can be changed into a prime (12022320341) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4638736 + ... + 4641326.

It is an arithmetic number, because the mean of its divisors is an integer number (321926400).

Almost surely, 2^12022320321 is an apocalyptic number.

12022320321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12022320321 is a deficient number, since it is larger than the sum of its proper divisors (8580969279).

12022320321 is a wasteful number, since it uses less digits than its factorization.

12022320321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3547 (or 3541 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12022320321 its reverse (12302322021), we get a palindrome (24324642342).

The spelling of 12022320321 in words is "twelve billion, twenty-two million, three hundred twenty thousand, three hundred twenty-one".