112442421 has 32 divisors (see below), whose sum is σ = 185149440. Its totient is φ = 59108544.

The previous prime is 112442419. The next prime is 112442461. The reversal of 112442421 is 124244211.

It is not a de Polignac number, because 112442421 - 2¹ = 112442419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112442461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113896 + ... + 114878.

It is an arithmetic number, because the mean of its divisors is an integer number (5785920).

Almost surely, 2^112442421 is an apocalyptic number.

It is an amenable number.

112442421 is a deficient number, since it is larger than the sum of its proper divisors (72707019).

112442421 is a wasteful number, since it uses less digits than its factorization.

112442421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425.

The product of its digits is 512, while the sum is 21.

The square root of 112442421 is about 10603.8870703153. The cubic root of 112442421 is about 482.6623198581.

Adding to 112442421 its reverse (124244211), we get a palindrome (236686632).

The spelling of 112442421 in words is "one hundred twelve million, four hundred forty-two thousand, four hundred twenty-one".