111442104122 has 4 divisors (see below), whose sum is σ = 167163156186. Its totient is φ = 55721052060.

The previous prime is 111442104121. The next prime is 111442104127. The reversal of 111442104122 is 221401244111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221401244111 = 29 ⋅7634525659.

It can be written as a sum of positive squares in only one way, i.e., 92020615801 + 19421488321 = 303349^2 + 139361^2 .

It is a super-2 number, since 2×111442104122² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111442104121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27860526029 + ... + 27860526032.

Almost surely, 2^111442104122 is an apocalyptic number.

111442104122 is a deficient number, since it is larger than the sum of its proper divisors (55721052064).

111442104122 is an equidigital number, since it uses as much as digits as its factorization.

111442104122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55721052063.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 111442104122 its reverse (221401244111), we get a palindrome (332843348233).

The spelling of 111442104122 in words is "one hundred eleven billion, four hundred forty-two million, one hundred four thousand, one hundred twenty-two".