12209363712 has 864 divisors, whose sum is σ = 46976025600. Its totient is φ = 3098124288.

The previous prime is 12209363701. The next prime is 12209363717. The reversal of 12209363712 is 21736390221.

12209363712 is a `hidden beast` number, since 1 + 2 + 2 + 0 + 9 + 3 + 637 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12209363717) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 206938339 + ... + 206938397.

It is an arithmetic number, because the mean of its divisors is an integer number (54370400).

Almost surely, 2^12209363712 is an apocalyptic number.

12209363712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12209363712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23488012800).

12209363712 is an abundant number, since it is smaller than the sum of its proper divisors (34766661888).

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

12209363712 is a wasteful number, since it uses less digits than its factorization.

12209363712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The spelling of 12209363712 in words is "twelve billion, two hundred nine million, three hundred sixty-three thousand, seven hundred twelve".