12210320112 has 40 divisors (see below), whose sum is σ = 31897757520. Its totient is φ = 4024373760.

The previous prime is 12210320081. The next prime is 12210320123. The reversal of 12210320112 is 21102301221.

It is a junction number, because it is equal to n+sod(n) for n = 12210320091 and 12210320100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1424839 + ... + 1433382.

It is an arithmetic number, because the mean of its divisors is an integer number (797443938).

Almost surely, 2^12210320112 is an apocalyptic number.

12210320112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12210320112 is an abundant number, since it is smaller than the sum of its proper divisors (19687437408).

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

12210320112 is a wasteful number, since it uses less digits than its factorization.

12210320112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2858321 (or 2858315 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12210320112 its reverse (21102301221), we get a palindrome (33312621333).

The spelling of 12210320112 in words is "twelve billion, two hundred ten million, three hundred twenty thousand, one hundred twelve".