111102122 has 4 divisors (see below), whose sum is σ = 166653186. Its totient is φ = 55551060.

The previous prime is 111102119. The next prime is 111102127. The reversal of 111102122 is 221201111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221201111 = 191 ⋅1158121.

It can be written as a sum of positive squares in only one way, i.e., 69872881 + 41229241 = 8359^2 + 6421^2 .

It is not an unprimeable number, because it can be changed into a prime (111102127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27775529 + ... + 27775532.

Almost surely, 2^111102122 is an apocalyptic number.

111102122 is a deficient number, since it is larger than the sum of its proper divisors (55551064).

111102122 is an equidigital number, since it uses as much as digits as its factorization.

111102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55551063.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 111102122 is about 10540.4991342915. The cubic root of 111102122 is about 480.7368918779.

Adding to 111102122 its reverse (221201111), we get a palindrome (332303233).

The spelling of 111102122 in words is "one hundred eleven million, one hundred two thousand, one hundred twenty-two".