112121508 has 48 divisors (see below), whose sum is σ = 281272320. Its totient is φ = 34650144.

The previous prime is 112121437. The next prime is 112121509. The reversal of 112121508 is 805121211.

It is not an unprimeable number, because it can be changed into a prime (112121509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5485 + ... + 15947.

It is an arithmetic number, because the mean of its divisors is an integer number (5859840).

Almost surely, 2^112121508 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 112121508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140636160).

112121508 is an abundant number, since it is smaller than the sum of its proper divisors (169150812).

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

112121508 is a wasteful number, since it uses less digits than its factorization.

112121508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10536 (or 10534 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 21.

The square root of 112121508 is about 10588.7444014859. The cubic root of 112121508 is about 482.2027062433.

Adding to 112121508 its reverse (805121211), we get a palindrome (917242719).

It can be divided in two parts, 11212 and 1508, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 112121508 in words is "one hundred twelve million, one hundred twenty-one thousand, five hundred eight".