12203121300 has 36 divisors (see below), whose sum is σ = 35307698496. Its totient is φ = 3254165600.

The previous prime is 12203121277. The next prime is 12203121311. The reversal of 12203121300 is 312130221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12203121300.

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 11 ways as a sum of consecutive naturals, for example, 20338236 + ... + 20338835.

Almost surely, 2^12203121300 is an apocalyptic number.

12203121300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12203121300 is an abundant number, since it is smaller than the sum of its proper divisors (23104577196).

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

12203121300 is a wasteful number, since it uses less digits than its factorization.

12203121300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40677088 (or 40677081 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12203121300 its reverse (312130221), we get a palindrome (12515251521).

The spelling of 12203121300 in words is "twelve billion, two hundred three million, one hundred twenty-one thousand, three hundred".