12213323213220 has 72 divisors (see below), whose sum is σ = 37194678480960. Its totient is φ = 3243910536000.

The previous prime is 12213323213207. The next prime is 12213323213257. The reversal of 12213323213220 is 2231232331221.

12213323213220 is a `hidden beast` number, since 1 + 2 + 2 + 1 + 332 + 3 + 2 + 1 + 322 + 0 = 666.

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, 135117760 + ... + 135208119.

It is an arithmetic number, because the mean of its divisors is an integer number (516592756680).

Almost surely, 2^{12213323213220} is an apocalyptic number.

12213323213220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12213323213220 is an abundant number, since it is smaller than the sum of its proper divisors (24981355267740).

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

12213323213220 is a wasteful number, since it uses less digits than its factorization.

12213323213220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270326145 (or 270326140 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 12213323213220 its reverse (2231232331221), we get a palindrome (14444555544441).

The spelling of 12213323213220 in words is "twelve trillion, two hundred thirteen billion, three hundred twenty-three million, two hundred thirteen thousand, two hundred twenty".