221132303211311 has 4 divisors (see below), whose sum is σ = 221360039878824. Its totient is φ = 220904566543800.

The previous prime is 221132303211257. The next prime is 221132303211319. The reversal of 221132303211311 is 113112303231122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221132303211311 - 2²⁶ = 221132236102447 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 (221132303211319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113868332300 + ... + 113868334241.

It is an arithmetic number, because the mean of its divisors is an integer number (55340009969706).

Almost surely, 2^{221132303211311} is an apocalyptic number.

221132303211311 is a deficient number, since it is larger than the sum of its proper divisors (227736667513).

221132303211311 is an equidigital number, since it uses as much as digits as its factorization.

221132303211311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227736667512.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 221132303211311 its reverse (113112303231122), we get a palindrome (334244606442433).

The spelling of 221132303211311 in words is "two hundred twenty-one trillion, one hundred thirty-two billion, three hundred three million, two hundred eleven thousand, three hundred eleven".