12213103320 has 256 divisors, whose sum is σ = 44914176000. Its totient is φ = 2927232000.

The previous prime is 12213103303. The next prime is 12213103379. The reversal of 12213103320 is 2330131221.

12213103320 is a `hidden beast` number, since 1 + 2 + 21 + 310 + 332 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12213103293 and 12213103302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1051545 + ... + 1063095.

It is an arithmetic number, because the mean of its divisors is an integer number (175446000).

Almost surely, 2^12213103320 is an apocalyptic number.

12213103320 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 12213103320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22457088000).

12213103320 is an abundant number, since it is smaller than the sum of its proper divisors (32701072680).

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

12213103320 is a wasteful number, since it uses less digits than its factorization.

12213103320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11671 (or 11661 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12213103320 its reverse (2330131221), we get a palindrome (14543234541).

The spelling of 12213103320 in words is "twelve billion, two hundred thirteen million, one hundred three thousand, three hundred twenty".