12022441221 has 16 divisors (see below), whose sum is σ = 18508778624. Its totient is φ = 6799140864.

The previous prime is 12022441217. The next prime is 12022441253. The reversal of 12022441221 is 12214422021.

12022441221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12022441221 - 2² = 12022441217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022443221) 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, 2948980 + ... + 2953053.

It is an arithmetic number, because the mean of its divisors is an integer number (1156798664).

Almost surely, 2^12022441221 is an apocalyptic number.

It is an amenable number.

12022441221 is a deficient number, since it is larger than the sum of its proper divisors (6486337403).

12022441221 is an equidigital number, since it uses as much as digits as its factorization.

12022441221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5902140.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12022441221 its reverse (12214422021), we get a palindrome (24236863242).

The spelling of 12022441221 in words is "twelve billion, twenty-two million, four hundred forty-one thousand, two hundred twenty-one".