12205574236 has 24 divisors (see below), whose sum is σ = 22490289360. Its totient is φ = 5779958400.

The previous prime is 12205574221. The next prime is 12205574237. The reversal of 12205574236 is 63247550221.

It is a junction number, because it is equal to n+sod(n) for n = 12205574195 and 12205574204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12205574237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274266 + ... + 315646.

It is an arithmetic number, because the mean of its divisors is an integer number (937095390).

Almost surely, 2^12205574236 is an apocalyptic number.

It is an amenable number.

12205574236 is a deficient number, since it is larger than the sum of its proper divisors (10284715124).

12205574236 is a wasteful number, since it uses less digits than its factorization.

12205574236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45285 (or 45283 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

The spelling of 12205574236 in words is "twelve billion, two hundred five million, five hundred seventy-four thousand, two hundred thirty-six".