12432211212 has 12 divisors (see below), whose sum is σ = 29008492856. Its totient is φ = 4144070400.

The previous prime is 12432211193. The next prime is 12432211217. The reversal of 12432211212 is 21211223421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (12432211217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518008789 + ... + 518008812.

Almost surely, 2^12432211212 is an apocalyptic number.

12432211212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12432211212 is an abundant number, since it is smaller than the sum of its proper divisors (16576281644).

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

12432211212 is a wasteful number, since it uses less digits than its factorization.

12432211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036017608 (or 1036017606 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

Adding to 12432211212 its reverse (21211223421), we get a palindrome (33643434633).

The spelling of 12432211212 in words is "twelve billion, four hundred thirty-two million, two hundred eleven thousand, two hundred twelve".