1160000221 has 4 divisors (see below), whose sum is σ = 1166409244. Its totient is φ = 1153591200.

The previous prime is 1160000197. The next prime is 1160000227. The reversal of 1160000221 is 1220000611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 308002500 + 851997721 = 17550^2 + 29189^2 .

It is a cyclic number.

It is not a de Polignac number, because 1160000221 - 2⁵ = 1160000189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1160000227) 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, 3204240 + ... + 3204601.

It is an arithmetic number, because the mean of its divisors is an integer number (291602311).

Almost surely, 2^1160000221 is an apocalyptic number.

It is an amenable number.

1160000221 is a deficient number, since it is larger than the sum of its proper divisors (6409023).

1160000221 is an equidigital number, since it uses as much as digits as its factorization.

1160000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6409022.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1160000221 is about 34058.7759762444. The cubic root of 1160000221 is about 1050.7176412252.

Adding to 1160000221 its reverse (1220000611), we get a palindrome (2380000832).

The spelling of 1160000221 in words is "one billion, one hundred sixty million, two hundred twenty-one", and thus it is an aban number.