1120226721 has 4 divisors (see below), whose sum is σ = 1493635632. Its totient is φ = 746817812.

The previous prime is 1120226677. The next prime is 1120226749. The reversal of 1120226721 is 1276220211.

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 1120226721 - 2⁷ = 1120226593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1120226691 and 1120226700.

It is not an unprimeable number, because it can be changed into a prime (1120226771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186704451 + ... + 186704456.

It is an arithmetic number, because the mean of its divisors is an integer number (373408908).

Almost surely, 2^1120226721 is an apocalyptic number.

It is an amenable number.

1120226721 is a deficient number, since it is larger than the sum of its proper divisors (373408911).

1120226721 is an equidigital number, since it uses as much as digits as its factorization.

1120226721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373408910.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 1120226721 is about 33469.7881827776. The cubic root of 1120226721 is about 1038.5688898957.

Adding to 1120226721 its reverse (1276220211), we get a palindrome (2396446932).

The spelling of 1120226721 in words is "one billion, one hundred twenty million, two hundred twenty-six thousand, seven hundred twenty-one".