221303132311 has 16 divisors (see below), whose sum is σ = 224331586560. Its totient is φ = 218293669440.

The previous prime is 221303132299. The next prime is 221303132329. The reversal of 221303132311 is 113231303122.

221303132311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 221303132311 - 2⁵ = 221303132279 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 (221303132341) 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 15 ways as a sum of consecutive naturals, for example, 81390010 + ... + 81392728.

It is an arithmetic number, because the mean of its divisors is an integer number (14020724160).

Almost surely, 2^221303132311 is an apocalyptic number.

221303132311 is a deficient number, since it is larger than the sum of its proper divisors (3028454249).

221303132311 is a wasteful number, since it uses less digits than its factorization.

221303132311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5814.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 221303132311 its reverse (113231303122), we get a palindrome (334534435433).

The spelling of 221303132311 in words is "two hundred twenty-one billion, three hundred three million, one hundred thirty-two thousand, three hundred eleven".