111442422230521 has 12 divisors (see below), whose sum is σ = 114284028057516. Its totient is φ = 108669867274880.

The previous prime is 111442422230501. The next prime is 111442422230527. The reversal of 111442422230521 is 125032224244111.

It can be written as a sum of positive squares in 6 ways, for example, as 98846943152400 + 12595479078121 = 9942180^2 + 3549011^2 .

It is not a de Polignac number, because 111442422230521 - 2⁷ = 111442422230393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111442422230527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13241770 + ... + 19955683.

It is an arithmetic number, because the mean of its divisors is an integer number (9523669004793).

Almost surely, 2^{111442422230521} is an apocalyptic number.

It is an amenable number.

111442422230521 is a deficient number, since it is larger than the sum of its proper divisors (2841605826995).

111442422230521 is an equidigital number, since it uses as much as digits as its factorization.

111442422230521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33199532 (or 33199491 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

Adding to 111442422230521 its reverse (125032224244111), we get a palindrome (236474646474632).

The spelling of 111442422230521 in words is "one hundred eleven trillion, four hundred forty-two billion, four hundred twenty-two million, two hundred thirty thousand, five hundred twenty-one".