11223211331 has 8 divisors (see below), whose sum is σ = 11451600384. Its totient is φ = 10996254720.

The previous prime is 11223211313. The next prime is 11223211367. The reversal of 11223211331 is 13311232211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11223211331 is a prime.

It is a super-2 number, since 2×11223211331² (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 (11223211231) 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, 342275 + ... + 373628.

It is an arithmetic number, because the mean of its divisors is an integer number (1431450048).

Almost surely, 2^11223211331 is an apocalyptic number.

11223211331 is a deficient number, since it is larger than the sum of its proper divisors (228389053).

11223211331 is an equidigital number, since it uses as much as digits as its factorization.

11223211331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716221.

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

Adding to 11223211331 its reverse (13311232211), we get a palindrome (24534443542).

The spelling of 11223211331 in words is "eleven billion, two hundred twenty-three million, two hundred eleven thousand, three hundred thirty-one".