11221132331 has 8 divisors (see below), whose sum is σ = 11268440880. Its totient is φ = 11173873248.

The previous prime is 11221132289. The next prime is 11221132333. The reversal of 11221132331 is 13323112211.

It is a happy number.

11221132331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11221132331 - 2⁶ = 11221132267 is a prime.

It is a super-2 number, since 2×11221132331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11221132333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483665 + ... + 506333.

It is an arithmetic number, because the mean of its divisors is an integer number (1408555110).

Almost surely, 2^11221132331 is an apocalyptic number.

11221132331 is a deficient number, since it is larger than the sum of its proper divisors (47308549).

11221132331 is a wasteful number, since it uses less digits than its factorization.

11221132331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24733.

The product of its digits is 216, while the sum is 20.

Adding to 11221132331 its reverse (13323112211), we get a palindrome (24544244542).

The spelling of 11221132331 in words is "eleven billion, two hundred twenty-one million, one hundred thirty-two thousand, three hundred thirty-one".