112021142100 has 144 divisors (see below), whose sum is σ = 373815657600. Its totient is φ = 25369873920.

The previous prime is 112021142033. The next prime is 112021142111. The reversal of 112021142100 is 1241120211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 112021142100.

It is a congruent number.

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, 15795 + ... + 473594.

Almost surely, 2^112021142100 is an apocalyptic number.

112021142100 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 112021142100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186907828800).

112021142100 is an abundant number, since it is smaller than the sum of its proper divisors (261794515500).

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

112021142100 is a wasteful number, since it uses less digits than its factorization.

112021142100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489522 (or 489515 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 112021142100 its reverse (1241120211), we get a palindrome (113262262311).

The spelling of 112021142100 in words is "one hundred twelve billion, twenty-one million, one hundred forty-two thousand, one hundred".