12240988321 has 27 divisors (see below), whose sum is σ = 13107489777. Its totient is φ = 11431221480.

The previous prime is 12240988303. The next prime is 12240988327. The reversal of 12240988321 is 12388904221.

The square root of 12240988321 is 110639.

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

12240988321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12240988321 - 2¹⁷ = 12240857249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12240988327) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 147481746 + ... + 147481828.

Almost surely, 2^12240988321 is an apocalyptic number.

12240988321 is the 110639-th square number.

12240988321 is the 55320-th centered octagonal number.

It is an amenable number.

12240988321 is a deficient number, since it is larger than the sum of its proper divisors (866501456).

12240988321 is an frugal number, since it uses more digits than its factorization.

12240988321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 12240988321 in words is "twelve billion, two hundred forty million, nine hundred eighty-eight thousand, three hundred twenty-one".