112012102022220 has 144 divisors (see below), whose sum is σ = 351051861888000. Its totient is φ = 28879852060800.

The previous prime is 112012102022143. The next prime is 112012102022257. The reversal of 112012102022220 is 22220201210211.

It is a happy number.

112012102022220 is a `hidden beast` number, since 1 + 120 + 121 + 0 + 202 + 2 + 220 = 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 = 112012102022193 and 112012102022202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3111970 + ... + 15287529.

It is an arithmetic number, because the mean of its divisors is an integer number (2437860152000).

Almost surely, 2^{112012102022220} is an apocalyptic number.

112012102022220 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 112012102022220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175525930944000).

112012102022220 is an abundant number, since it is smaller than the sum of its proper divisors (239039759865780).

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

112012102022220 is a wasteful number, since it uses less digits than its factorization.

112012102022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18400636 (or 18400631 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 112012102022220 its reverse (22220201210211), we get a palindrome (134232303232431).

The spelling of 112012102022220 in words is "one hundred twelve trillion, twelve billion, one hundred two million, twenty-two thousand, two hundred twenty".