12305530220 has 12 divisors (see below), whose sum is σ = 25841613504. Its totient is φ = 4922212080.

The previous prime is 12305530213. The next prime is 12305530229. The reversal of 12305530220 is 2203550321.

It is not an unprimeable number, because it can be changed into a prime (12305530229) 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, 307638236 + ... + 307638275.

It is an arithmetic number, because the mean of its divisors is an integer number (2153467792).

Almost surely, 2^12305530220 is an apocalyptic number.

12305530220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12305530220 is an abundant number, since it is smaller than the sum of its proper divisors (13536083284).

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

12305530220 is a wasteful number, since it uses less digits than its factorization.

12305530220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615276520 (or 615276518 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The spelling of 12305530220 in words is "twelve billion, three hundred five million, five hundred thirty thousand, two hundred twenty".