12221003344 has 20 divisors (see below), whose sum is σ = 25830757440. Its totient is φ = 5555001440.

The previous prime is 12221003321. The next prime is 12221003351. The reversal of 12221003344 is 44330012221.

12221003344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34718584 + ... + 34718935.

It is an arithmetic number, because the mean of its divisors is an integer number (1291537872).

Almost surely, 2^12221003344 is an apocalyptic number.

It is an amenable number.

12221003344 is an abundant number, since it is smaller than the sum of its proper divisors (13609754096).

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

12221003344 is a wasteful number, since it uses less digits than its factorization.

12221003344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69437538 (or 69437532 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12221003344 its reverse (44330012221), we get a palindrome (56551015565).

The spelling of 12221003344 in words is "twelve billion, two hundred twenty-one million, three thousand, three hundred forty-four".