11333323221 has 64 divisors (see below), whose sum is σ = 17693164800. Its totient is φ = 6386688000.

The previous prime is 11333323217. The next prime is 11333323231. The reversal of 11333323221 is 12232333311.

It is not a de Polignac number, because 11333323221 - 2² = 11333323217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11333323191 and 11333323200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11333323231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3574725 + ... + 3577893.

It is an arithmetic number, because the mean of its divisors is an integer number (276455700).

Almost surely, 2^11333323221 is an apocalyptic number.

11333323221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11333323221 is a deficient number, since it is larger than the sum of its proper divisors (6359841579).

11333323221 is a wasteful number, since it uses less digits than its factorization.

11333323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350.

The product of its digits is 1944, while the sum is 24.

Adding to 11333323221 its reverse (12232333311), we get a palindrome (23565656532).

The spelling of 11333323221 in words is "eleven billion, three hundred thirty-three million, three hundred twenty-three thousand, two hundred twenty-one".