12211432412 has 12 divisors (see below), whose sum is σ = 22299137616. Its totient is φ = 5840250240.

The previous prime is 12211432399. The next prime is 12211432421. The reversal of 12211432412 is 21423411221.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66366389 + ... + 66366572.

It is an arithmetic number, because the mean of its divisors is an integer number (1858261468).

Almost surely, 2^12211432412 is an apocalyptic number.

It is an amenable number.

12211432412 is a deficient number, since it is larger than the sum of its proper divisors (10087705204).

12211432412 is a wasteful number, since it uses less digits than its factorization.

12211432412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132732988 (or 132732986 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

Adding to 12211432412 its reverse (21423411221), we get a palindrome (33634843633).

The spelling of 12211432412 in words is "twelve billion, two hundred eleven million, four hundred thirty-two thousand, four hundred twelve".