112211101222220 has 384 divisors, whose sum is σ = 325732669194240. Its totient is φ = 31340212485120.

The previous prime is 112211101222189. The next prime is 112211101222273. The reversal of 112211101222220 is 22222101112211.

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 = 112211101222192 and 112211101222201.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 139920341 + ... + 140720019.

It is an arithmetic number, because the mean of its divisors is an integer number (848262159360).

Almost surely, 2^{112211101222220} is an apocalyptic number.

112211101222220 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 112211101222220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162866334597120).

112211101222220 is an abundant number, since it is smaller than the sum of its proper divisors (213521567972020).

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

112211101222220 is a wasteful number, since it uses less digits than its factorization.

112211101222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799925 (or 799923 counting only the distinct ones).

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

Adding to 112211101222220 its reverse (22222101112211), we get a palindrome (134433202334431).

The spelling of 112211101222220 in words is "one hundred twelve trillion, two hundred eleven billion, one hundred one million, two hundred twenty-two thousand, two hundred twenty".