13353440124221 has 24 divisors (see below), whose sum is σ = 14292359854080. Its totient is φ = 12452028278976.

The previous prime is 13353440124203. The next prime is 13353440124259. The reversal of 13353440124221 is 12242104435331.

It is a de Polignac number, because none of the positive numbers 2^k-13353440124221 is a prime.

It is a super-3 number, since 3×13353440124221³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13353440124121) 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, 9485060 + ... + 10801538.

It is an arithmetic number, because the mean of its divisors is an integer number (595514993920).

Almost surely, 2^{13353440124221} is an apocalyptic number.

It is an amenable number.

13353440124221 is a deficient number, since it is larger than the sum of its proper divisors (938919729859).

13353440124221 is a wasteful number, since it uses less digits than its factorization.

13353440124221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316765 (or 1316712 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 13353440124221 its reverse (12242104435331), we get a palindrome (25595544559552).

The spelling of 13353440124221 in words is "thirteen trillion, three hundred fifty-three billion, four hundred forty million, one hundred twenty-four thousand, two hundred twenty-one".