13221012341004 has 96 divisors (see below), whose sum is σ = 34378326037440. Its totient is φ = 3926504064000.

The previous prime is 13221012340927. The next prime is 13221012341027. The reversal of 13221012341004 is 40014321012231.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14118154 + ... + 15025454.

It is an arithmetic number, because the mean of its divisors is an integer number (358107562890).

Almost surely, 2^{13221012341004} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13221012341004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17189163018720).

13221012341004 is an abundant number, since it is smaller than the sum of its proper divisors (21157313696436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13221012341004 is a wasteful number, since it uses less digits than its factorization.

13221012341004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910571 (or 910569 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 13221012341004 its reverse (40014321012231), we get a palindrome (53235333353235).

The spelling of 13221012341004 in words is "thirteen trillion, two hundred twenty-one billion, twelve million, three hundred forty-one thousand, four".