111101112220122 has 48 divisors (see below), whose sum is σ = 247391257231872. Its totient is φ = 36008560959840.

The previous prime is 111101112220081. The next prime is 111101112220129. The reversal of 111101112220122 is 221022211101111.

It is a happy number.

111101112220122 is a `hidden beast` number, since 111 + 101 + 112 + 220 + 122 = 666.

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 = 111101112220095 and 111101112220104.

It is not an unprimeable number, because it can be changed into a prime (111101112220129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55101954 + ... + 57082637.

It is an arithmetic number, because the mean of its divisors is an integer number (5153984525664).

Almost surely, 2^{111101112220122} is an apocalyptic number.

111101112220122 is an abundant number, since it is smaller than the sum of its proper divisors (136290145011750).

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

111101112220122 is a wasteful number, since it uses less digits than its factorization.

111101112220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112186123 (or 112186120 counting only the distinct ones).

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

Adding to 111101112220122 its reverse (221022211101111), we get a palindrome (332123323321233).

The spelling of 111101112220122 in words is "one hundred eleven trillion, one hundred one billion, one hundred twelve million, two hundred twenty thousand, one hundred twenty-two".