112121202112 has 56 divisors (see below), whose sum is σ = 224801746992. Its totient is φ = 55478784000.

The previous prime is 112121202091. The next prime is 112121202113. The reversal of 112121202112 is 211202121211.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112121202113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24580312 + ... + 24584872.

Almost surely, 2^112121202112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 112121202112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112400873496).

112121202112 is an abundant number, since it is smaller than the sum of its proper divisors (112680544880).

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

112121202112 is a wasteful number, since it uses less digits than its factorization.

112121202112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8477 (or 8467 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 112121202112 its reverse (211202121211), we get a palindrome (323323323323).

The spelling of 112121202112 in words is "one hundred twelve billion, one hundred twenty-one million, two hundred two thousand, one hundred twelve".