12213332321020 has 96 divisors (see below), whose sum is σ = 27695698329600. Its totient is φ = 4510210408704.

The previous prime is 12213332320999. The next prime is 12213332321041. The reversal of 12213332321020 is 2012323331221.

It is an interprime number because it is at equal distance from previous prime (12213332320999) and next prime (12213332321041).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38246857 + ... + 38564863.

It is an arithmetic number, because the mean of its divisors is an integer number (288496857600).

Almost surely, 2^{12213332321020} is an apocalyptic number.

12213332321020 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 12213332321020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13847849164800).

12213332321020 is an abundant number, since it is smaller than the sum of its proper divisors (15482366008580).

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

12213332321020 is a wasteful number, since it uses less digits than its factorization.

12213332321020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320947 (or 320945 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 12213332321020 its reverse (2012323331221), we get a palindrome (14225655652241).

It can be divided in two parts, 12213 and 332321020, that added together give a palindrome (332333233).

The spelling of 12213332321020 in words is "twelve trillion, two hundred thirteen billion, three hundred thirty-two million, three hundred twenty-one thousand, twenty".