11133323221 has 8 divisors (see below), whose sum is σ = 11368223064. Its totient is φ = 10900650240.

The previous prime is 11133323219. The next prime is 11133323233. The reversal of 11133323221 is 12232333111.

It can be written as a sum of positive squares in 4 ways, for example, as 6283732900 + 4849590321 = 79270^2 + 69639^2 .

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 11133323221 - 2¹ = 11133323219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11133323192 and 11133323201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11133323261) 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, 546610 + ... + 566611.

It is an arithmetic number, because the mean of its divisors is an integer number (1421027883).

Almost surely, 2^11133323221 is an apocalyptic number.

It is an amenable number.

11133323221 is a deficient number, since it is larger than the sum of its proper divisors (234899843).

11133323221 is a wasteful number, since it uses less digits than its factorization.

11133323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113431.

The product of its digits is 648, while the sum is 22.

Adding to 11133323221 its reverse (12232333111), we get a palindrome (23365656332).

The spelling of 11133323221 in words is "eleven billion, one hundred thirty-three million, three hundred twenty-three thousand, two hundred twenty-one".