12022020321 has 8 divisors (see below), whose sum is σ = 16071214080. Its totient is φ = 7993753392.

The previous prime is 12022020251. The next prime is 12022020323. The reversal of 12022020321 is 12302022021.

It is a happy number.

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

It is not a de Polignac number, because 12022020321 - 2¹⁰ = 12022019297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12022020321.

It is not an unprimeable number, because it can be changed into a prime (12022020323) 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, 5230366 + ... + 5232663.

It is an arithmetic number, because the mean of its divisors is an integer number (2008901760).

Almost surely, 2^12022020321 is an apocalyptic number.

It is an amenable number.

12022020321 is a deficient number, since it is larger than the sum of its proper divisors (4049193759).

12022020321 is a wasteful number, since it uses less digits than its factorization.

12022020321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10463415.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12022020321 its reverse (12302022021), we get a palindrome (24324042342).

The spelling of 12022020321 in words is "twelve billion, twenty-two million, twenty thousand, three hundred twenty-one".