13321000200221 has 16 divisors (see below), whose sum is σ = 15419347722240. Its totient is φ = 11271539026800.

The previous prime is 13321000200163. The next prime is 13321000200251. The reversal of 13321000200221 is 12200200012331.

It is not a de Polignac number, because 13321000200221 - 2¹⁰ = 13321000199197 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13321000200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321000200251) 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, 1177100 + ... + 5294106.

It is an arithmetic number, because the mean of its divisors is an integer number (963709232640).

Almost surely, 2^{13321000200221} is an apocalyptic number.

It is an amenable number.

13321000200221 is a deficient number, since it is larger than the sum of its proper divisors (2098347522019).

13321000200221 is an equidigital number, since it uses as much as digits as its factorization.

13321000200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4122944.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13321000200221 its reverse (12200200012331), we get a palindrome (25521200212552).

The spelling of 13321000200221 in words is "thirteen trillion, three hundred twenty-one billion, two hundred thousand, two hundred twenty-one".