12213312223220 has 24 divisors (see below), whose sum is σ = 25691648973984. Its totient is φ = 4877002354976.

The previous prime is 12213312223199. The next prime is 12213312223247. The reversal of 12213312223220 is 2232221331221.

It is a self number, because there is not a number n which added to its sum of digits gives 12213312223220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520146362 + ... + 520169841.

It is an arithmetic number, because the mean of its divisors is an integer number (1070485373916).

Almost surely, 2^{12213312223220} is an apocalyptic number.

12213312223220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12213312223220 is an abundant number, since it is smaller than the sum of its proper divisors (13478336750764).

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

12213312223220 is a wasteful number, since it uses less digits than its factorization.

12213312223220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040316799 (or 1040316797 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 12213312223220 its reverse (2232221331221), we get a palindrome (14445533554441).

The spelling of 12213312223220 in words is "twelve trillion, two hundred thirteen billion, three hundred twelve million, two hundred twenty-three thousand, two hundred twenty".