12220330112 has 32 divisors (see below), whose sum is σ = 24938984700. Its totient is φ = 5961134080.

The previous prime is 12220330103. The next prime is 12220330121. The reversal of 12220330112 is 21103302221.

It is an interprime number because it is at equal distance from previous prime (12220330103) and next prime (12220330121).

It can be written as a sum of positive squares in 2 ways, for example, as 7818803776 + 4401526336 = 88424^2 + 66344^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1159037 + ... + 1169532.

Almost surely, 2^12220330112 is an apocalyptic number.

It is an amenable number.

12220330112 is an abundant number, since it is smaller than the sum of its proper divisors (12718654588).

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

12220330112 is an equidigital number, since it uses as much as digits as its factorization.

12220330112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2328624 (or 2328612 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12220330112 its reverse (21103302221), we get a palindrome (33323632333).

The spelling of 12220330112 in words is "twelve billion, two hundred twenty million, three hundred thirty thousand, one hundred twelve".