12213453212 has 12 divisors (see below), whose sum is σ = 21406787976. Its totient is φ = 6097228080.

The previous prime is 12213453163. The next prime is 12213453227. The reversal of 12213453212 is 21235431221.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2371739 + ... + 2376882.

It is an arithmetic number, because the mean of its divisors is an integer number (1783898998).

Almost surely, 2^12213453212 is an apocalyptic number.

It is an amenable number.

12213453212 is a deficient number, since it is larger than the sum of its proper divisors (9193334764).

12213453212 is a wasteful number, since it uses less digits than its factorization.

12213453212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4749268 (or 4749266 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

Adding to 12213453212 its reverse (21235431221), we get a palindrome (33448884433).

The spelling of 12213453212 in words is "twelve billion, two hundred thirteen million, four hundred fifty-three thousand, two hundred twelve".