1112241021 has 4 divisors (see below), whose sum is σ = 1482988032. Its totient is φ = 741494012.

The previous prime is 1112241017. The next prime is 1112241029. The reversal of 1112241021 is 1201422111.

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: 1201422111 = 3 ⋅400474037.

It is a cyclic number.

It is not a de Polignac number, because 1112241021 - 2² = 1112241017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112241029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185373501 + ... + 185373506.

It is an arithmetic number, because the mean of its divisors is an integer number (370747008).

Almost surely, 2^1112241021 is an apocalyptic number.

It is an amenable number.

1112241021 is a deficient number, since it is larger than the sum of its proper divisors (370747011).

1112241021 is an equidigital number, since it uses as much as digits as its factorization.

1112241021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370747010.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1112241021 is about 33350.2776750059. The cubic root of 1112241021 is about 1036.0951389823.

Adding to 1112241021 its reverse (1201422111), we get a palindrome (2313663132).

The spelling of 1112241021 in words is "one billion, one hundred twelve million, two hundred forty-one thousand, twenty-one".