13211202021204 has 24 divisors (see below), whose sum is σ = 33628514236128. Its totient is φ = 4003394551840.

The previous prime is 13211202021167. The next prime is 13211202021209. The reversal of 13211202021204 is 40212020211231.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13211202021209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50042431767 + ... + 50042432030.

It is an arithmetic number, because the mean of its divisors is an integer number (1401188093172).

Almost surely, 2^{13211202021204} is an apocalyptic number.

It is an amenable number.

13211202021204 is an abundant number, since it is smaller than the sum of its proper divisors (20417312214924).

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

13211202021204 is a wasteful number, since it uses less digits than its factorization.

13211202021204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100084863815 (or 100084863813 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 13211202021204 its reverse (40212020211231), we get a palindrome (53423222232435).

The spelling of 13211202021204 in words is "thirteen trillion, two hundred eleven billion, two hundred two million, twenty-one thousand, two hundred four".