12211213203232 has 48 divisors (see below), whose sum is σ = 25089395490432. Its totient is φ = 5839373422080.

The previous prime is 12211213203191. The next prime is 12211213203239. The reversal of 12211213203232 is 23230231211221.

It is a super-2 number, since 2×12211213203232² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12211213203197 and 12211213203206.

It is not an unprimeable number, because it can be changed into a prime (12211213203239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4494148 + ... + 6679804.

It is an arithmetic number, because the mean of its divisors is an integer number (522695739384).

Almost surely, 2^{12211213203232} is an apocalyptic number.

It is an amenable number.

12211213203232 is an abundant number, since it is smaller than the sum of its proper divisors (12878182287200).

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

12211213203232 is a wasteful number, since it uses less digits than its factorization.

12211213203232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193281 (or 2193273 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 12211213203232 its reverse (23230231211221), we get a palindrome (35441444414453).

The spelling of 12211213203232 in words is "twelve trillion, two hundred eleven billion, two hundred thirteen million, two hundred three thousand, two hundred thirty-two".