12012224322 has 64 divisors (see below), whose sum is σ = 28140456960. Its totient is φ = 3346830144.

The previous prime is 12012224291. The next prime is 12012224347. The reversal of 12012224322 is 22342221021.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 31 ways as a sum of consecutive naturals, for example, 1185108 + ... + 1195200.

It is an arithmetic number, because the mean of its divisors is an integer number (439694640).

Almost surely, 2^12012224322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12012224322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14070228480).

12012224322 is an abundant number, since it is smaller than the sum of its proper divisors (16128232638).

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

12012224322 is a wasteful number, since it uses less digits than its factorization.

12012224322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10807.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12012224322 its reverse (22342221021), we get a palindrome (34354445343).

The spelling of 12012224322 in words is "twelve billion, twelve million, two hundred twenty-four thousand, three hundred twenty-two".