12225564036 has 96 divisors (see below), whose sum is σ = 36290177280. Its totient is φ = 3486627072.

The previous prime is 12225563969. The next prime is 12225564061. The reversal of 12225564036 is 63046552221.

12225564036 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 5 + 5 + 640 + 3 + 6 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 406576 + ... + 435608.

It is an arithmetic number, because the mean of its divisors is an integer number (378022680).

Almost surely, 2^12225564036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12225564036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18145088640).

12225564036 is an abundant number, since it is smaller than the sum of its proper divisors (24064613244).

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

12225564036 is a wasteful number, since it uses less digits than its factorization.

12225564036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29610 (or 29602 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 12225564036 in words is "twelve billion, two hundred twenty-five million, five hundred sixty-four thousand, thirty-six".