12221744704 has 63 divisors (see below), whose sum is σ = 26286337953. Its totient is φ = 5635498752.

The previous prime is 12221744701. The next prime is 12221744723. The reversal of 12221744704 is 40744712221.

The square root of 12221744704 is 110552.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1807950400 + 10413794304 = 42520^2 + 102048^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12221744704.

It is not an unprimeable number, because it can be changed into a prime (12221744701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11496877 + ... + 11497939.

Almost surely, 2^12221744704 is an apocalyptic number.

12221744704 is the 110552-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12221744704

12221744704 is an abundant number, since it is smaller than the sum of its proper divisors (14064593249).

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

12221744704 is an frugal number, since it uses more digits than its factorization.

12221744704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164 (or 1078 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 34.

The spelling of 12221744704 in words is "twelve billion, two hundred twenty-one million, seven hundred forty-four thousand, seven hundred four".