111022442 has 4 divisors (see below), whose sum is σ = 166533666. Its totient is φ = 55511220.

The previous prime is 111022441. The next prime is 111022447. The reversal of 111022442 is 244220111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 97634161 + 13388281 = 9881^2 + 3659^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111022442.

It is not an unprimeable number, because it can be changed into a prime (111022441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27755609 + ... + 27755612.

Almost surely, 2^111022442 is an apocalyptic number.

111022442 is a deficient number, since it is larger than the sum of its proper divisors (55511224).

111022442 is an equidigital number, since it uses as much as digits as its factorization.

111022442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55511223.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 111022442 is about 10536.7187492122. The cubic root of 111022442 is about 480.6219397488.

Adding to 111022442 its reverse (244220111), we get a palindrome (355242553).

The spelling of 111022442 in words is "one hundred eleven million, twenty-two thousand, four hundred forty-two".