12200055320 has 32 divisors (see below), whose sum is σ = 27797601600. Its totient is φ = 4818248448.

The previous prime is 12200055313. The next prime is 12200055337. The reversal of 12200055320 is 2355000221.

It is a super-2 number, since 2×12200055320² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12200055292 and 12200055301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1927229 + ... + 1933548.

It is an arithmetic number, because the mean of its divisors is an integer number (868675050).

Almost surely, 2^12200055320 is an apocalyptic number.

12200055320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12200055320 is an abundant number, since it is smaller than the sum of its proper divisors (15597546280).

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

12200055320 is a wasteful number, since it uses less digits than its factorization.

12200055320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3860867 (or 3860863 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

Adding to 12200055320 its reverse (2355000221), we get a palindrome (14555055541).

The spelling of 12200055320 in words is "twelve billion, two hundred million, fifty-five thousand, three hundred twenty".