13002203021221 has 16 divisors (see below), whose sum is σ = 13436636449984. Its totient is φ = 12574343867904.

The previous prime is 13002203021189. The next prime is 13002203021239. The reversal of 13002203021221 is 12212030220031.

It is a cyclic number.

It is not a de Polignac number, because 13002203021221 - 2⁵ = 13002203021189 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 (13002203021281) 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, 1492236 + ... + 5313301.

It is an arithmetic number, because the mean of its divisors is an integer number (839789778124).

Almost surely, 2^{13002203021221} is an apocalyptic number.

It is an amenable number.

13002203021221 is a deficient number, since it is larger than the sum of its proper divisors (434433428763).

13002203021221 is a wasteful number, since it uses less digits than its factorization.

13002203021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6806020.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13002203021221 its reverse (12212030220031), we get a palindrome (25214233241252).

The spelling of 13002203021221 in words is "thirteen trillion, two billion, two hundred three million, twenty-one thousand, two hundred twenty-one".