12012222032 has 80 divisors (see below), whose sum is σ = 25090394112. Its totient is φ = 5550673920.

The previous prime is 12012222017. The next prime is 12012222091. The reversal of 12012222032 is 23022221021.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 12012222032.

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, 6978932 + ... + 6980652.

Almost surely, 2^12012222032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12012222032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12545197056).

12012222032 is an abundant number, since it is smaller than the sum of its proper divisors (13078172080).

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

12012222032 is a wasteful number, since it uses less digits than its factorization.

12012222032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196 (or 2190 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12012222032 its reverse (23022221021), we get a palindrome (35034443053).

The spelling of 12012222032 in words is "twelve billion, twelve million, two hundred twenty-two thousand, thirty-two".