12213123312300 has 144 divisors (see below), whose sum is σ = 35874790866432. Its totient is φ = 3207337011200.

The previous prime is 12213123312253. The next prime is 12213123312427. The reversal of 12213123312300 is 321332131221.

12213123312300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18569884 + ... + 19216316.

It is an arithmetic number, because the mean of its divisors is an integer number (249130492128).

Almost surely, 2^{12213123312300} is an apocalyptic number.

12213123312300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12213123312300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17937395433216).

12213123312300 is an abundant number, since it is smaller than the sum of its proper divisors (23661667554132).

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

12213123312300 is a wasteful number, since it uses less digits than its factorization.

12213123312300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647408 (or 647401 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 12213123312300 its reverse (321332131221), we get a palindrome (12534455443521).

The spelling of 12213123312300 in words is "twelve trillion, two hundred thirteen billion, one hundred twenty-three million, three hundred twelve thousand, three hundred".