111313333231221 has 16 divisors (see below), whose sum is σ = 161910479320128. Its totient is φ = 67462552684800.

The previous prime is 111313333231211. The next prime is 111313333231259. The reversal of 111313333231221 is 122132333313111.

It is not a de Polignac number, because 111313333231221 - 2²⁹ = 111312796360309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111313333231211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57424975 + ... + 59331731.

It is an arithmetic number, because the mean of its divisors is an integer number (10119404957508).

Almost surely, 2^{111313333231221} is an apocalyptic number.

111313333231221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111313333231221 is a deficient number, since it is larger than the sum of its proper divisors (50597146088907).

111313333231221 is a wasteful number, since it uses less digits than its factorization.

111313333231221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3675812.

The product of its digits is 5832, while the sum is 30.

Adding to 111313333231221 its reverse (122132333313111), we get a palindrome (233445666544332).

The spelling of 111313333231221 in words is "one hundred eleven trillion, three hundred thirteen billion, three hundred thirty-three million, two hundred thirty-one thousand, two hundred twenty-one".