12223203220 has 96 divisors (see below), whose sum is σ = 26876691072. Its totient is φ = 4665765888.

The previous prime is 12223203199. The next prime is 12223203221. The reversal of 12223203220 is 2230232221.

12223203220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223203221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7093279 + ... + 7095001.

It is an arithmetic number, because the mean of its divisors is an integer number (279965532).

Almost surely, 2^12223203220 is an apocalyptic number.

12223203220 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 12223203220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13438345536).

12223203220 is an abundant number, since it is smaller than the sum of its proper divisors (14653487852).

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

12223203220 is a wasteful number, since it uses less digits than its factorization.

12223203220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961 (or 1959 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 12223203220 its reverse (2230232221), we get a palindrome (14453435441).

The spelling of 12223203220 in words is "twelve billion, two hundred twenty-three million, two hundred three thousand, two hundred twenty".