12213233312 has 48 divisors (see below), whose sum is σ = 28674559872. Its totient is φ = 5006664960.

The previous prime is 12213233297. The next prime is 12213233317. The reversal of 12213233312 is 21333231221.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (12213233317) 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, 1180139 + ... + 1190442.

It is an arithmetic number, because the mean of its divisors is an integer number (597386664).

Almost surely, 2^12213233312 is an apocalyptic number.

It is an amenable number.

12213233312 is an abundant number, since it is smaller than the sum of its proper divisors (16461326560).

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

12213233312 is a wasteful number, since it uses less digits than its factorization.

12213233312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370621 (or 2370613 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

Adding to 12213233312 its reverse (21333231221), we get a palindrome (33546464533).

The spelling of 12213233312 in words is "twelve billion, two hundred thirteen million, two hundred thirty-three thousand, three hundred twelve".