112121424 has 60 divisors (see below), whose sum is σ = 324616500. Its totient is φ = 36083712.

The previous prime is 112121423. The next prime is 112121437. The reversal of 112121424 is 424121211.

It can be written as a sum of positive squares in 2 ways, for example, as 44355600 + 67765824 = 6660^2 + 8232^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 112121397 and 112121406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112121423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9249 + ... + 17600.

It is an arithmetic number, because the mean of its divisors is an integer number (5410275).

Almost surely, 2^112121424 is an apocalyptic number.

It is an amenable number.

112121424 is an abundant number, since it is smaller than the sum of its proper divisors (212495076).

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

112121424 is a wasteful number, since it uses less digits than its factorization.

112121424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26892 (or 26883 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 112121424 is about 10588.7404350093. The cubic root of 112121424 is about 482.2025858232.

Adding to 112121424 its reverse (424121211), we get a palindrome (536242635).

The spelling of 112121424 in words is "one hundred twelve million, one hundred twenty-one thousand, four hundred twenty-four".