12244422444221 has 16 divisors (see below), whose sum is σ = 13941601113600. Its totient is φ = 10644813545520.

The previous prime is 12244422444217. The next prime is 12244422444223.

12244422444221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12244422444221 - 2² = 12244422444217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12244422444223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4629671 + ... + 6776628.

It is an arithmetic number, because the mean of its divisors is an integer number (871350069600).

Almost surely, 2^{12244422444221} is an apocalyptic number.

12244422444221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12244422444221 is a deficient number, since it is larger than the sum of its proper divisors (1697178669379).

12244422444221 is a wasteful number, since it uses less digits than its factorization.

12244422444221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11410576.

The product of its digits is 262144, while the sum is 38.

It can be divided in two parts, 1224442 and 2444221, that added together give a palindrome (3668663).

The spelling of 12244422444221 in words is "twelve trillion, two hundred forty-four billion, four hundred twenty-two million, four hundred forty-four thousand, two hundred twenty-one".