1112444221 has 4 divisors (see below), whose sum is σ = 1271364832. Its totient is φ = 953523612.

The previous prime is 1112444159. The next prime is 1112444227. The reversal of 1112444221 is 1224442111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1224442111 = 12889 ⋅94999.

It is a cyclic number.

It is not a de Polignac number, because 1112444221 - 2⁷ = 1112444093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112444192 and 1112444201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112444227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79460295 + ... + 79460308.

It is an arithmetic number, because the mean of its divisors is an integer number (317841208).

Almost surely, 2^1112444221 is an apocalyptic number.

It is an amenable number.

1112444221 is a deficient number, since it is larger than the sum of its proper divisors (158920611).

1112444221 is an equidigital number, since it uses as much as digits as its factorization.

1112444221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158920610.

The product of its digits is 512, while the sum is 22.

The square root of 1112444221 is about 33353.3239872730. The cubic root of 1112444221 is about 1036.1582313362.

Adding to 1112444221 its reverse (1224442111), we get a palindrome (2336886332).

The spelling of 1112444221 in words is "one billion, one hundred twelve million, four hundred forty-four thousand, two hundred twenty-one".