112201021020 has 192 divisors, whose sum is σ = 364338196992. Its totient is φ = 25497600000.

The previous prime is 112201021001. The next prime is 112201021027. The reversal of 112201021020 is 20120102211.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 112201020987 and 112201021005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112201021027) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2796300 + ... + 2836140.

It is an arithmetic number, because the mean of its divisors is an integer number (1897594776).

Almost surely, 2^112201021020 is an apocalyptic number.

112201021020 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 112201021020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182169098496).

112201021020 is an abundant number, since it is smaller than the sum of its proper divisors (252137175972).

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

112201021020 is a wasteful number, since it uses less digits than its factorization.

112201021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40132 (or 40130 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 112201021020 its reverse (20120102211), we get a palindrome (132321123231).

The spelling of 112201021020 in words is "one hundred twelve billion, two hundred one million, twenty-one thousand, twenty".