12020022321 has 8 divisors (see below), whose sum is σ = 16032499584. Its totient is φ = 8010446640.

The previous prime is 12020022281. The next prime is 12020022349. The reversal of 12020022321 is 12322002021.

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 12020022321 - 2⁶ = 12020022257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12020022321.

It is not an unprimeable number, because it can be changed into a prime (12020022361) 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, 715710 + ... + 732311.

It is an arithmetic number, because the mean of its divisors is an integer number (2004062448).

Almost surely, 2^12020022321 is an apocalyptic number.

It is an amenable number.

12020022321 is a deficient number, since it is larger than the sum of its proper divisors (4012477263).

12020022321 is a wasteful number, since it uses less digits than its factorization.

12020022321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450791.

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

Adding to 12020022321 its reverse (12322002021), we get a palindrome (24342024342).

The spelling of 12020022321 in words is "twelve billion, twenty million, twenty-two thousand, three hundred twenty-one".