12222443241 has 20 divisors (see below), whose sum is σ = 18284724304. Its totient is φ = 8136466200.

The previous prime is 12222443239. The next prime is 12222443251. The reversal of 12222443241 is 14234422221.

It is a happy number.

12222443241 is a `hidden beast` number, since 1 + 2 + 2 + 224 + 432 + 4 + 1 = 666.

It is not a de Polignac number, because 12222443241 - 2¹ = 12222443239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12222443231) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 53215 + ... + 165156.

Almost surely, 2^12222443241 is an apocalyptic number.

It is an amenable number.

12222443241 is a deficient number, since it is larger than the sum of its proper divisors (6062281063).

12222443241 is an equidigital number, since it uses as much as digits as its factorization.

12222443241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219074 (or 219065 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

Adding to 12222443241 its reverse (14234422221), we get a palindrome (26456865462).

The spelling of 12222443241 in words is "twelve billion, two hundred twenty-two million, four hundred forty-three thousand, two hundred forty-one".