12222403312 has 20 divisors (see below), whose sum is σ = 27063893296. Its totient is φ = 5238172800.

The previous prime is 12222403309. The next prime is 12222403313. The reversal of 12222403312 is 21330422221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222403313) 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, 54564189 + ... + 54564412.

Almost surely, 2^12222403312 is an apocalyptic number.

It is an amenable number.

12222403312 is an abundant number, since it is smaller than the sum of its proper divisors (14841489984).

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

12222403312 is a wasteful number, since it uses less digits than its factorization.

12222403312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109128616 (or 109128610 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12222403312 its reverse (21330422221), we get a palindrome (33552825533).

The spelling of 12222403312 in words is "twelve billion, two hundred twenty-two million, four hundred three thousand, three hundred twelve".