12213123220232 has 128 divisors (see below), whose sum is σ = 26502521673600. Its totient is φ = 5223453849600.

The previous prime is 12213123220229. The next prime is 12213123220247. The reversal of 12213123220232 is 23202232131221.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94836878 + ... + 94965570.

It is an arithmetic number, because the mean of its divisors is an integer number (207050950575).

Almost surely, 2^{12213123220232} 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 12213123220232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13251260836800).

12213123220232 is an abundant number, since it is smaller than the sum of its proper divisors (14289398453368).

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

12213123220232 is a wasteful number, since it uses less digits than its factorization.

12213123220232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129687 (or 129683 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 12213123220232 its reverse (23202232131221), we get a palindrome (35415355351453).

The spelling of 12213123220232 in words is "twelve trillion, two hundred thirteen billion, one hundred twenty-three million, two hundred twenty thousand, two hundred thirty-two".