221113101311 has 16 divisors (see below), whose sum is σ = 227438765568. Its totient is φ = 214832659200.

The previous prime is 221113101283. The next prime is 221113101361. The reversal of 221113101311 is 113101311122.

It is a cyclic number.

It is not a de Polignac number, because 221113101311 - 2²² = 221108907007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221113101311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221113101361) 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, 31125986 + ... + 31133088.

It is an arithmetic number, because the mean of its divisors is an integer number (14214922848).

Almost surely, 2^221113101311 is an apocalyptic number.

221113101311 is a deficient number, since it is larger than the sum of its proper divisors (6325664257).

221113101311 is a wasteful number, since it uses less digits than its factorization.

221113101311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10162.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 221113101311 its reverse (113101311122), we get a palindrome (334214412433).

The spelling of 221113101311 in words is "two hundred twenty-one billion, one hundred thirteen million, one hundred one thousand, three hundred eleven".