221131113313 has 16 divisors (see below), whose sum is σ = 251941404672. Its totient is φ = 192120610000.

The previous prime is 221131113271. The next prime is 221131113373. The reversal of 221131113313 is 313311131122.

It is not a de Polignac number, because 221131113313 - 2⁹ = 221131112801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221131113373) 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, 88483 + ... + 670888.

It is an arithmetic number, because the mean of its divisors is an integer number (15746337792).

Almost surely, 2^221131113313 is an apocalyptic number.

221131113313 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

221131113313 is a deficient number, since it is larger than the sum of its proper divisors (30810291359).

221131113313 is a wasteful number, since it uses less digits than its factorization.

221131113313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760556.

The product of its digits is 324, while the sum is 22.

Adding to 221131113313 its reverse (313311131122), we get a palindrome (534442244435).

The spelling of 221131113313 in words is "two hundred twenty-one billion, one hundred thirty-one million, one hundred thirteen thousand, three hundred thirteen".