111112012220 has 48 divisors (see below), whose sum is σ = 255538106208. Its totient is φ = 40247132160.

The previous prime is 111112012199. The next prime is 111112012261. The reversal of 111112012220 is 22210211111.

It is a junction number, because it is equal to n+sod(n) for n = 111112012195 and 111112012204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 926057 + ... + 1039136.

It is an arithmetic number, because the mean of its divisors is an integer number (5323710546).

Almost surely, 2^111112012220 is an apocalyptic number.

111112012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111112012220 is an abundant number, since it is smaller than the sum of its proper divisors (144426093988).

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

111112012220 is a wasteful number, since it uses less digits than its factorization.

111112012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1965470 (or 1965468 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111112012220 its reverse (22210211111), we get a palindrome (133322223331).

The spelling of 111112012220 in words is "one hundred eleven billion, one hundred twelve million, twelve thousand, two hundred twenty".