12213205368 has 64 divisors (see below), whose sum is σ = 37579100160. Its totient is φ = 3221064576.

The previous prime is 12213205313. The next prime is 12213205397. The reversal of 12213205368 is 86350231221.

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, 2793880 + ... + 2798247.

It is an arithmetic number, because the mean of its divisors is an integer number (587173440).

Almost surely, 2^12213205368 is an apocalyptic number.

It is an amenable number.

12213205368 is an abundant number, since it is smaller than the sum of its proper divisors (25365894792).

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

12213205368 is a wasteful number, since it uses less digits than its factorization.

12213205368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5592156 (or 5592152 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 12213205368 its reverse (86350231221), we get a palindrome (98563436589).

The spelling of 12213205368 in words is "twelve billion, two hundred thirteen million, two hundred five thousand, three hundred sixty-eight".