111011122210122 has 144 divisors (see below), whose sum is σ = 263929177025280. Its totient is φ = 33625065358080.

The previous prime is 111011122210097. The next prime is 111011122210129. The reversal of 111011122210122 is 221012221110111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111011122210095 and 111011122210104.

It is not an unprimeable number, because it can be changed into a prime (111011122210129) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 35644263 + ... + 38633349.

It is an arithmetic number, because the mean of its divisors is an integer number (1832841507120).

Almost surely, 2^{111011122210122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111011122210122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131964588512640).

111011122210122 is an abundant number, since it is smaller than the sum of its proper divisors (152918054815158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111011122210122 is a wasteful number, since it uses less digits than its factorization.

111011122210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989289 (or 2989255 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111011122210122 its reverse (221012221110111), we get a palindrome (332023343320233).

The spelling of 111011122210122 in words is "one hundred eleven trillion, eleven billion, one hundred twenty-two million, two hundred ten thousand, one hundred twenty-two".