12444231222 has 24 divisors (see below), whose sum is σ = 28381580760. Its totient is φ = 3929757120.

The previous prime is 12444231221. The next prime is 12444231257. The reversal of 12444231222 is 22213244421.

It is a happy number.

12444231222 is a `hidden beast` number, since 12 + 4 + 4 + 423 + 1 + 222 = 666.

It is a super-2 number, since 2×12444231222² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12444231221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18192979 + ... + 18193662.

It is an arithmetic number, because the mean of its divisors is an integer number (1182565865).

Almost surely, 2^12444231222 is an apocalyptic number.

12444231222 is an abundant number, since it is smaller than the sum of its proper divisors (15937349538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12444231222 is a wasteful number, since it uses less digits than its factorization.

12444231222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36386668 (or 36386665 counting only the distinct ones).

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

Adding to 12444231222 its reverse (22213244421), we get a palindrome (34657475643).

The spelling of 12444231222 in words is "twelve billion, four hundred forty-four million, two hundred thirty-one thousand, two hundred twenty-two".