12285012900 has 36 divisors (see below), whose sum is σ = 35544638192. Its totient is φ = 3276003360.

The previous prime is 12285012893. The next prime is 12285012919. The reversal of 12285012900 is 921058221.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 11 ways as a sum of consecutive naturals, for example, 20474722 + ... + 20475321.

Almost surely, 2^12285012900 is an apocalyptic number.

12285012900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12285012900 is an abundant number, since it is smaller than the sum of its proper divisors (23259625292).

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

12285012900 is a wasteful number, since it uses less digits than its factorization.

12285012900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40950060 (or 40950053 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The spelling of 12285012900 in words is "twelve billion, two hundred eighty-five million, twelve thousand, nine hundred".