12227764896 has 144 divisors (see below), whose sum is σ = 38419303104. Its totient is φ = 3669338112.

The previous prime is 12227764891. The next prime is 12227764903. The reversal of 12227764896 is 69846772221.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (12227764891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58315 + ... + 166901.

It is an arithmetic number, because the mean of its divisors is an integer number (266800716).

Almost surely, 2^12227764896 is an apocalyptic number.

12227764896 is a gapful number since it is divisible by the number (16) 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 12227764896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19209651552).

12227764896 is an abundant number, since it is smaller than the sum of its proper divisors (26191538208).

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

12227764896 is a wasteful number, since it uses less digits than its factorization.

12227764896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108643 (or 108632 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The spelling of 12227764896 in words is "twelve billion, two hundred twenty-seven million, seven hundred sixty-four thousand, eight hundred ninety-six".