112421421 has 24 divisors (see below), whose sum is σ = 186080960. Its totient is φ = 64069056.

The previous prime is 112421417. The next prime is 112421431. The reversal of 112421421 is 124124211.

112421421 is a `hidden beast` number, since 1 + 1 + 242 + 1 + 421 = 666.

It is not a de Polignac number, because 112421421 - 2² = 112421417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112421394 and 112421403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112421431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23586 + ... + 27948.

Almost surely, 2^112421421 is an apocalyptic number.

It is an amenable number.

112421421 is a deficient number, since it is larger than the sum of its proper divisors (73659539).

112421421 is a wasteful number, since it uses less digits than its factorization.

112421421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4785 (or 4782 counting only the distinct ones).

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

The square root of 112421421 is about 10602.8968211522. The cubic root of 112421421 is about 482.6322702863.

Adding to 112421421 its reverse (124124211), we get a palindrome (236545632).

The spelling of 112421421 in words is "one hundred twelve million, four hundred twenty-one thousand, four hundred twenty-one".