112112221012220 has 192 divisors, whose sum is σ = 279416668608000. Its totient is φ = 37248494976000.

The previous prime is 112112221012217. The next prime is 112112221012271. The reversal of 112112221012220 is 22210122211211.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 112112221012192 and 112112221012201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1010665679 + ... + 1010776601.

It is an arithmetic number, because the mean of its divisors is an integer number (1455295149000).

Almost surely, 2^{112112221012220} is an apocalyptic number.

112112221012220 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 112112221012220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139708334304000).

112112221012220 is an abundant number, since it is smaller than the sum of its proper divisors (167304447595780).

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

112112221012220 is a wasteful number, since it uses less digits than its factorization.

112112221012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114556 (or 114554 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 112112221012220 its reverse (22210122211211), we get a palindrome (134322343223431).

The spelling of 112112221012220 in words is "one hundred twelve trillion, one hundred twelve billion, two hundred twenty-one million, twelve thousand, two hundred twenty".