21202132203213 has 8 divisors (see below), whose sum is σ = 30444087266208. Its totient is φ = 13047465971184.

The previous prime is 21202132203193. The next prime is 21202132203247. The reversal of 21202132203213 is 31230223120212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21202132203213 - 2⁵ = 21202132203181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202132201213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271822207695 + ... + 271822207772.

It is an arithmetic number, because the mean of its divisors is an integer number (3805510908276).

Almost surely, 2^{21202132203213} is an apocalyptic number.

It is an amenable number.

21202132203213 is a deficient number, since it is larger than the sum of its proper divisors (9241955062995).

21202132203213 is a wasteful number, since it uses less digits than its factorization.

21202132203213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543644415483.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 21202132203213 its reverse (31230223120212), we get a palindrome (52432355323425).

The spelling of 21202132203213 in words is "twenty-one trillion, two hundred two billion, one hundred thirty-two million, two hundred three thousand, two hundred thirteen".