12243222234221 has 32 divisors (see below), whose sum is σ = 13617836608896. Its totient is φ = 10914370560000.

The previous prime is 12243222234193. The next prime is 12243222234223.

12243222234221 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12243222234221 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 (12243222234223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 622073501 + ... + 622093181.

It is an arithmetic number, because the mean of its divisors is an integer number (425557394028).

Almost surely, 2^{12243222234221} is an apocalyptic number.

12243222234221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12243222234221 is a deficient number, since it is larger than the sum of its proper divisors (1374614374675).

12243222234221 is a wasteful number, since it uses less digits than its factorization.

12243222234221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25133.

The product of its digits is 36864, while the sum is 32.

It can be divided in two parts, 1224322 and 2234221, that added together give a palindrome (3458543).

The spelling of 12243222234221 in words is "twelve trillion, two hundred forty-three billion, two hundred twenty-two million, two hundred thirty-four thousand, two hundred twenty-one".