13212151240544 has 24 divisors (see below), whose sum is σ = 26012214084528. Its totient is φ = 6605874647680.

The previous prime is 13212151240543. The next prime is 13212151240549. The reversal of 13212151240544 is 44504215121231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212151240543) 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 3 ways as a sum of consecutive naturals, for example, 5209292 + ... + 7318539.

It is an arithmetic number, because the mean of its divisors is an integer number (1083842253522).

Almost surely, 2^{13212151240544} is an apocalyptic number.

It is an amenable number.

13212151240544 is a deficient number, since it is larger than the sum of its proper divisors (12800062843984).

13212151240544 is a wasteful number, since it uses less digits than its factorization.

13212151240544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12560798 (or 12560790 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

Adding to 13212151240544 its reverse (44504215121231), we get a palindrome (57716366361775).

The spelling of 13212151240544 in words is "thirteen trillion, two hundred twelve billion, one hundred fifty-one million, two hundred forty thousand, five hundred forty-four".