13440220203244 has 24 divisors (see below), whose sum is σ = 23740716258000. Its totient is φ = 6657396419520.

The previous prime is 13440220203227. The next prime is 13440220203353. The reversal of 13440220203244 is 44230202204431.

It is a super-2 number, since 2×13440220203244² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29524387 + ... + 29976154.

It is an arithmetic number, because the mean of its divisors is an integer number (989196510750).

Almost surely, 2^{13440220203244} is an apocalyptic number.

It is an amenable number.

13440220203244 is a deficient number, since it is larger than the sum of its proper divisors (10300496054756).

13440220203244 is a wasteful number, since it uses less digits than its factorization.

13440220203244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59501073 (or 59501071 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 13440220203244 its reverse (44230202204431), we get a palindrome (57670422407675).

The spelling of 13440220203244 in words is "thirteen trillion, four hundred forty billion, two hundred twenty million, two hundred three thousand, two hundred forty-four".