11223312211 has 4 divisors (see below), whose sum is σ = 11322633672. Its totient is φ = 11123990752.

The previous prime is 11223312193. The next prime is 11223312259. The reversal of 11223312211 is 11221332211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11223312211 - 2¹³ = 11223304019 is a prime.

It is a super-4 number, since 4×11223312211⁴ (a number of 41 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11223312281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49660561 + ... + 49660786.

It is an arithmetic number, because the mean of its divisors is an integer number (2830658418).

Almost surely, 2^11223312211 is an apocalyptic number.

11223312211 is a deficient number, since it is larger than the sum of its proper divisors (99321461).

11223312211 is an equidigital number, since it uses as much as digits as its factorization.

11223312211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99321460.

The product of its digits is 144, while the sum is 19.

Adding to 11223312211 its reverse (11221332211), we get a palindrome (22444644422).

The spelling of 11223312211 in words is "eleven billion, two hundred twenty-three million, three hundred twelve thousand, two hundred eleven".