1045221113 has 4 divisors (see below), whose sum is σ = 1058451840. Its totient is φ = 1031990388.

The previous prime is 1045221091. The next prime is 1045221137. The reversal of 1045221113 is 3111225401.

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.

It is a cyclic number.

It is not a de Polignac number, because 1045221113 - 2¹⁶ = 1045155577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045221413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6615245 + ... + 6615402.

It is an arithmetic number, because the mean of its divisors is an integer number (264612960).

Almost surely, 2^1045221113 is an apocalyptic number.

It is an amenable number.

1045221113 is a deficient number, since it is larger than the sum of its proper divisors (13230727).

1045221113 is an equidigital number, since it uses as much as digits as its factorization.

1045221113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13230726.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1045221113 is about 32329.8795698345. The cubic root of 1045221113 is about 1014.8520295185.

Adding to 1045221113 its reverse (3111225401), we get a palindrome (4156446514).

The spelling of 1045221113 in words is "one billion, forty-five million, two hundred twenty-one thousand, one hundred thirteen".