11232030221 has 4 divisors (see below), whose sum is σ = 11232370812. Its totient is φ = 11231689632.

The previous prime is 11232030217. The next prime is 11232030269. The reversal of 11232030221 is 12203023211.

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 3919386025 + 7312644196 = 62605^2 + 85514^2 .

It is a cyclic number.

It is not a de Polignac number, because 11232030221 - 2² = 11232030217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11232030221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11232060221) 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, 114800 + ... + 188793.

It is an arithmetic number, because the mean of its divisors is an integer number (2808092703).

Almost surely, 2^11232030221 is an apocalyptic number.

It is an amenable number.

11232030221 is a deficient number, since it is larger than the sum of its proper divisors (340591).

11232030221 is an equidigital number, since it uses as much as digits as its factorization.

11232030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340590.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 11232030221 its reverse (12203023211), we get a palindrome (23435053432).

It can be divided in two parts, 11 and 232030221, that added together give a palindrome (232030232).

The spelling of 11232030221 in words is "eleven billion, two hundred thirty-two million, thirty thousand, two hundred twenty-one".