12204342220 has 24 divisors (see below), whose sum is σ = 29290421664. Its totient is φ = 4184345856.

The previous prime is 12204342191. The next prime is 12204342239. The reversal of 12204342220 is 2224340221.

It is a junction number, because it is equal to n+sod(n) for n = 12204342191 and 12204342200.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 43586797 + ... + 43587076.

It is an arithmetic number, because the mean of its divisors is an integer number (1220434236).

Almost surely, 2^12204342220 is an apocalyptic number.

12204342220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12204342220 is an abundant number, since it is smaller than the sum of its proper divisors (17086079444).

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

12204342220 is a wasteful number, since it uses less digits than its factorization.

12204342220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87173889 (or 87173887 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 12204342220 its reverse (2224340221), we get a palindrome (14428682441).

The spelling of 12204342220 in words is "twelve billion, two hundred four million, three hundred forty-two thousand, two hundred twenty".