11440233221 has 8 divisors (see below), whose sum is σ = 11657905560. Its totient is φ = 11222628352.

The previous prime is 11440233197. The next prime is 11440233223. The reversal of 11440233221 is 12233204411.

It can be written as a sum of positive squares in 4 ways, for example, as 1114624996 + 10325608225 = 33386^2 + 101615^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11440233221 - 2³⁰ = 10366491397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11440233223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443741 + ... + 468813.

It is an arithmetic number, because the mean of its divisors is an integer number (1457238195).

Almost surely, 2^11440233221 is an apocalyptic number.

It is an amenable number.

11440233221 is a deficient number, since it is larger than the sum of its proper divisors (217672339).

11440233221 is an equidigital number, since it uses as much as digits as its factorization.

11440233221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33735.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 11440233221 its reverse (12233204411), we get a palindrome (23673437632).

The spelling of 11440233221 in words is "eleven billion, four hundred forty million, two hundred thirty-three thousand, two hundred twenty-one".