12213942216 has 128 divisors (see below), whose sum is σ = 37918924800. Its totient is φ = 3199357440.

The previous prime is 12213942211. The next prime is 12213942229. The reversal of 12213942216 is 61224931221.

It is not an unprimeable number, because it can be changed into a prime (12213942211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37236 + ... + 160668.

It is an arithmetic number, because the mean of its divisors is an integer number (296241600).

Almost surely, 2^12213942216 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 12213942216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18959462400).

12213942216 is an abundant number, since it is smaller than the sum of its proper divisors (25704982584).

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

12213942216 is a wasteful number, since it uses less digits than its factorization.

12213942216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123499 (or 123495 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The spelling of 12213942216 in words is "twelve billion, two hundred thirteen million, nine hundred forty-two thousand, two hundred sixteen".