12443212222 has 32 divisors (see below), whose sum is σ = 21464745984. Its totient is φ = 5299526400.

The previous prime is 12443212219. The next prime is 12443212261. The reversal of 12443212222 is 22221234421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1583022 + ... + 1590862.

It is an arithmetic number, because the mean of its divisors is an integer number (670773312).

Almost surely, 2^12443212222 is an apocalyptic number.

12443212222 is a deficient number, since it is larger than the sum of its proper divisors (9021533762).

12443212222 is a wasteful number, since it uses less digits than its factorization.

12443212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8544.

The product of its digits is 3072, while the sum is 25.

Adding to 12443212222 its reverse (22221234421), we get a palindrome (34664446643).

The spelling of 12443212222 in words is "twelve billion, four hundred forty-three million, two hundred twelve thousand, two hundred twenty-two".