22343444323221 has 16 divisors (see below), whose sum is σ = 35145448521728. Its totient is φ = 12355821745200.

The previous prime is 22343444323199. The next prime is 22343444323231. The reversal of 22343444323221 is 12232344434322.

It is not a de Polignac number, because 22343444323221 - 2¹⁰ = 22343444322197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22343444323221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22343444323231) 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, 17160862885 + ... + 17160864186.

It is an arithmetic number, because the mean of its divisors is an integer number (2196590532608).

Almost surely, 2^{22343444323221} is an apocalyptic number.

22343444323221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22343444323221 is a deficient number, since it is larger than the sum of its proper divisors (12802004198507).

22343444323221 is a wasteful number, since it uses less digits than its factorization.

22343444323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34321727112.

The product of its digits is 663552, while the sum is 39.

Adding to 22343444323221 its reverse (12232344434322), we get a palindrome (34575788757543).

The spelling of 22343444323221 in words is "twenty-two trillion, three hundred forty-three billion, four hundred forty-four million, three hundred twenty-three thousand, two hundred twenty-one".