12331442220 has 96 divisors (see below), whose sum is σ = 34964686848. Its totient is φ = 3246988032.

The previous prime is 12331442209. The next prime is 12331442231. The reversal of 12331442220 is 2224413321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12331442209) and next prime (12331442231).

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, 2265342 + ... + 2270778.

It is an arithmetic number, because the mean of its divisors is an integer number (364215488).

Almost surely, 2^12331442220 is an apocalyptic number.

12331442220 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 12331442220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17482343424).

12331442220 is an abundant number, since it is smaller than the sum of its proper divisors (22633244628).

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

12331442220 is a wasteful number, since it uses less digits than its factorization.

12331442220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5919 (or 5917 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12331442220 its reverse (2224413321), we get a palindrome (14555855541).

The spelling of 12331442220 in words is "twelve billion, three hundred thirty-one million, four hundred forty-two thousand, two hundred twenty".