13211401210221 has 16 divisors (see below), whose sum is σ = 17723750615744. Its totient is φ = 8753329234944.

The previous prime is 13211401210213. The next prime is 13211401210229. The reversal of 13211401210221 is 12201210411231.

It is an interprime number because it is at equal distance from previous prime (13211401210213) and next prime (13211401210229).

It is not a de Polignac number, because 13211401210221 - 2³ = 13211401210213 is a prime.

It is a super-2 number, since 2×13211401210221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13211401210229) 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, 18713175 + ... + 19406331.

It is an arithmetic number, because the mean of its divisors is an integer number (1107734413484).

Almost surely, 2^{13211401210221} is an apocalyptic number.

It is an amenable number.

13211401210221 is a deficient number, since it is larger than the sum of its proper divisors (4512349405523).

13211401210221 is a wasteful number, since it uses less digits than its factorization.

13211401210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732300.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 13211401210221 its reverse (12201210411231), we get a palindrome (25412611621452).

The spelling of 13211401210221 in words is "thirteen trillion, two hundred eleven billion, four hundred one million, two hundred ten thousand, two hundred twenty-one".