112121001200 has 120 divisors (see below), whose sum is σ = 294847961856. Its totient is φ = 40719744000.

The previous prime is 112121001191. The next prime is 112121001233. The reversal of 112121001200 is 2100121211.

It is a super-2 number, since 2×112121001200² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140465 + ... + 493935.

Almost surely, 2^112121001200 is an apocalyptic number.

112121001200 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 112121001200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147423980928).

112121001200 is an abundant number, since it is smaller than the sum of its proper divisors (182726960656).

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

112121001200 is a wasteful number, since it uses less digits than its factorization.

112121001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353563 (or 353552 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 112121001200 its reverse (2100121211), we get a palindrome (114221122411).

The spelling of 112121001200 in words is "one hundred twelve billion, one hundred twenty-one million, one thousand, two hundred".