12209867352 has 48 divisors (see below), whose sum is σ = 33081108840. Its totient is φ = 4068390528.

The previous prime is 12209867339. The next prime is 12209867353. The reversal of 12209867352 is 25376890221.

12209867352 is a `hidden beast` number, since 12 + 209 + 86 + 7 + 352 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12209867298 and 12209867307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12209867353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164083 + ... + 226589.

Almost surely, 2^12209867352 is an apocalyptic number.

12209867352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12209867352 is an abundant number, since it is smaller than the sum of its proper divisors (20871241488).

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

12209867352 is a wasteful number, since it uses less digits than its factorization.

12209867352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65232 (or 65225 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 12209867352 in words is "twelve billion, two hundred nine million, eight hundred sixty-seven thousand, three hundred fifty-two".