111112320122 has 4 divisors (see below), whose sum is σ = 166668480186. Its totient is φ = 55556160060.

The previous prime is 111112320113. The next prime is 111112320139. The reversal of 111112320122 is 221023211111.

It is a happy number.

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., 105755690401 + 5356629721 = 325201^2 + 73189^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111112320122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27778080029 + ... + 27778080032.

Almost surely, 2^111112320122 is an apocalyptic number.

111112320122 is a deficient number, since it is larger than the sum of its proper divisors (55556160064).

111112320122 is an equidigital number, since it uses as much as digits as its factorization.

111112320122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55556160063.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 111112320122 its reverse (221023211111), we get a palindrome (332135531233).

The spelling of 111112320122 in words is "one hundred eleven billion, one hundred twelve million, three hundred twenty thousand, one hundred twenty-two".