111013321232221 has 4 divisors (see below), whose sum is σ = 111333244348512. Its totient is φ = 110693398115932.

The previous prime is 111013321232189. The next prime is 111013321232239. The reversal of 111013321232221 is 122232123310111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111013321232221 - 2⁵ = 111013321232189 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 (111013321232321) 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 3 ways as a sum of consecutive naturals, for example, 159961557625 + ... + 159961558318.

It is an arithmetic number, because the mean of its divisors is an integer number (27833311087128).

Almost surely, 2^{111013321232221} is an apocalyptic number.

It is an amenable number.

111013321232221 is a deficient number, since it is larger than the sum of its proper divisors (319923116291).

111013321232221 is an equidigital number, since it uses as much as digits as its factorization.

111013321232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319923116290.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 111013321232221 its reverse (122232123310111), we get a palindrome (233245444542332).

The spelling of 111013321232221 in words is "one hundred eleven trillion, thirteen billion, three hundred twenty-one million, two hundred thirty-two thousand, two hundred twenty-one".