12222031232 has 32 divisors (see below), whose sum is σ = 25134024000. Its totient is φ = 5913884160.

The previous prime is 12222031229. The next prime is 12222031247. The reversal of 12222031232 is 23213022221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1536107 + ... + 1544042.

It is an arithmetic number, because the mean of its divisors is an integer number (785438250).

Almost surely, 2^12222031232 is an apocalyptic number.

It is an amenable number.

12222031232 is an abundant number, since it is smaller than the sum of its proper divisors (12911992768).

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

12222031232 is an equidigital number, since it uses as much as digits as its factorization.

12222031232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080194 (or 3080182 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12222031232 its reverse (23213022221), we get a palindrome (35435053453).

The spelling of 12222031232 in words is "twelve billion, two hundred twenty-two million, thirty-one thousand, two hundred thirty-two".