111112012022220 has 288 divisors, whose sum is σ = 370153256578560. Its totient is φ = 26755073280000.

The previous prime is 111112012022197. The next prime is 111112012022299. The reversal of 111112012022220 is 22220210211111.

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 = 111112012022193 and 111112012022202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5286254871 + ... + 5286275889.

It is an arithmetic number, because the mean of its divisors is an integer number (1285254363120).

Almost surely, 2^{111112012022220} is an apocalyptic number.

111112012022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111112012022220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185076628289280).

111112012022220 is an abundant number, since it is smaller than the sum of its proper divisors (259041244556340).

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

111112012022220 is a wasteful number, since it uses less digits than its factorization.

111112012022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38877 (or 38872 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111112012022220 its reverse (22220210211111), we get a palindrome (133332222233331).

The spelling of 111112012022220 in words is "one hundred eleven trillion, one hundred twelve billion, twelve million, twenty-two thousand, two hundred twenty".