11332233221 has 4 divisors (see below), whose sum is σ = 11332470444. Its totient is φ = 11331996000.

The previous prime is 11332233217. The next prime is 11332233223. The reversal of 11332233221 is 12233223311.

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 3700288900 + 7631944321 = 60830^2 + 87361^2 .

It is a cyclic number.

It is not a de Polignac number, because 11332233221 - 2² = 11332233217 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 (11332233223) 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, 19160 + ... + 151761.

It is an arithmetic number, because the mean of its divisors is an integer number (2833117611).

Almost surely, 2^11332233221 is an apocalyptic number.

It is an amenable number.

11332233221 is a deficient number, since it is larger than the sum of its proper divisors (237223).

11332233221 is an equidigital number, since it uses as much as digits as its factorization.

11332233221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237222.

The product of its digits is 1296, while the sum is 23.

Adding to 11332233221 its reverse (12233223311), we get a palindrome (23565456532).

The spelling of 11332233221 in words is "eleven billion, three hundred thirty-two million, two hundred thirty-three thousand, two hundred twenty-one".