240324013520221 has 16 divisors (see below), whose sum is σ = 246883798925568. Its totient is φ = 233850757593600.

The previous prime is 240324013520209. The next prime is 240324013520257. The reversal of 240324013520221 is 122025310423042.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 240324013520221 - 2¹⁷ = 240324013389149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240324013523221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5955576 + ... + 22718206.

It is an arithmetic number, because the mean of its divisors is an integer number (15430237432848).

Almost surely, 2^{240324013520221} is an apocalyptic number.

It is an amenable number.

240324013520221 is a deficient number, since it is larger than the sum of its proper divisors (6559785405347).

240324013520221 is a wasteful number, since it uses less digits than its factorization.

240324013520221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16765212.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 240324013520221 its reverse (122025310423042), we get a palindrome (362349323943263).

The spelling of 240324013520221 in words is "two hundred forty trillion, three hundred twenty-four billion, thirteen million, five hundred twenty thousand, two hundred twenty-one".