112121200212 has 96 divisors (see below), whose sum is σ = 302146252800. Its totient is φ = 31698179712.

The previous prime is 112121200201. The next prime is 112121200231. The reversal of 112121200212 is 212002121211.

It is a junction number, because it is equal to n+sod(n) for n = 112121200191 and 112121200200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3117589 + ... + 3153347.

It is an arithmetic number, because the mean of its divisors is an integer number (3147356800).

Almost surely, 2^112121200212 is an apocalyptic number.

112121200212 is a gapful number since it is divisible by the number (12) 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 112121200212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151073126400).

112121200212 is an abundant number, since it is smaller than the sum of its proper divisors (190025052588).

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

112121200212 is a wasteful number, since it uses less digits than its factorization.

112121200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36165 (or 36163 counting only the distinct ones).

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

Adding to 112121200212 its reverse (212002121211), we get a palindrome (324123321423).

The spelling of 112121200212 in words is "one hundred twelve billion, one hundred twenty-one million, two hundred thousand, two hundred twelve".