12223201223212 has 72 divisors (see below), whose sum is σ = 26802387440640. Its totient is φ = 4849116037920.

The previous prime is 12223201223201. The next prime is 12223201223239. The reversal of 12223201223212 is 21232210232221.

12223201223212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43593262 + ... + 43872757.

It is an arithmetic number, because the mean of its divisors is an integer number (372255381120).

Almost surely, 2^{12223201223212} is an apocalyptic number.

It is an amenable number.

12223201223212 is an abundant number, since it is smaller than the sum of its proper divisors (14579186217428).

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

12223201223212 is a wasteful number, since it uses less digits than its factorization.

12223201223212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87466091 (or 87466082 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 12223201223212 its reverse (21232210232221), we get a palindrome (33455411455433).

Subtracting 12223201223212 from its reverse (21232210232221), we obtain a palindrome (9009009009009).

The spelling of 12223201223212 in words is "twelve trillion, two hundred twenty-three billion, two hundred one million, two hundred twenty-three thousand, two hundred twelve".