12230556920 has 16 divisors (see below), whose sum is σ = 27518753160. Its totient is φ = 4892222752.

The previous prime is 12230556917. The next prime is 12230556929. The reversal of 12230556920 is 2965503221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230556929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152881922 + ... + 152882001.

Almost surely, 2^12230556920 is an apocalyptic number.

12230556920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12230556920 is an abundant number, since it is smaller than the sum of its proper divisors (15288196240).

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

12230556920 is a wasteful number, since it uses less digits than its factorization.

12230556920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305763934 (or 305763930 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 12230556920 in words is "twelve billion, two hundred thirty million, five hundred fifty-six thousand, nine hundred twenty".