111522422321 has 4 divisors (see below), whose sum is σ = 114242481444. Its totient is φ = 108802363200.

The previous prime is 111522422309. The next prime is 111522422327. The reversal of 111522422321 is 123224225111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123224225111 = 13 ⋅9478786547.

It can be written as a sum of positive squares in 2 ways, for example, as 57642727921 + 53879694400 = 240089^2 + 232120^2 .

It is a cyclic number.

It is not a de Polignac number, because 111522422321 - 2¹⁸ = 111522160177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111522422327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1360029500 + ... + 1360029581.

It is an arithmetic number, because the mean of its divisors is an integer number (28560620361).

Almost surely, 2^111522422321 is an apocalyptic number.

It is an amenable number.

111522422321 is a deficient number, since it is larger than the sum of its proper divisors (2720059123).

111522422321 is an equidigital number, since it uses as much as digits as its factorization.

111522422321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2720059122.

The product of its digits is 1920, while the sum is 26.

Adding to 111522422321 its reverse (123224225111), we get a palindrome (234746647432).

The spelling of 111522422321 in words is "one hundred eleven billion, five hundred twenty-two million, four hundred twenty-two thousand, three hundred twenty-one".