11133332221 has 8 divisors (see below), whose sum is σ = 12152647584. Its totient is φ = 10115215920.

The previous prime is 11133332141. The next prime is 11133332233. The reversal of 11133332221 is 12223333111.

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 11133332221 - 2¹³ = 11133324029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11133332192 and 11133332201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11133332621) 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, 280291 + ... + 317536.

It is an arithmetic number, because the mean of its divisors is an integer number (1519080948).

Almost surely, 2^11133332221 is an apocalyptic number.

11133332221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11133332221 is a deficient number, since it is larger than the sum of its proper divisors (1019315363).

11133332221 is a wasteful number, since it uses less digits than its factorization.

11133332221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599531.

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

Adding to 11133332221 its reverse (12223333111), we get a palindrome (23356665332).

The spelling of 11133332221 in words is "eleven billion, one hundred thirty-three million, three hundred thirty-two thousand, two hundred twenty-one".