1112421 has 8 divisors (see below), whose sum is σ = 1488160. Its totient is φ = 739152.

The previous prime is 1112413. The next prime is 1112467. The reversal of 1112421 is 1242111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1112421 - 2³ = 1112413 is a prime.

It is a Duffinian number.

1112421 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1112397 and 1112406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1215 + ... + 1923.

It is an arithmetic number, because the mean of its divisors is an integer number (186020).

2^1112421 is an apocalyptic number.

It is an amenable number.

1112421 is a deficient number, since it is larger than the sum of its proper divisors (375739).

1112421 is an equidigital number, since it uses as much as digits as its factorization.

1112421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235.

The product of its digits is 16, while the sum is 12.

The square root of 1112421 is about 1054.7137052300. The cubic root of 1112421 is about 103.6151021747.

Adding to 1112421 its reverse (1242111), we get a palindrome (2354532).

It can be divided in two parts, 11 and 12421, that multiplied together give a palindrome (136631).

The spelling of 1112421 in words is "one million, one hundred twelve thousand, four hundred twenty-one".