11221233331111 has 8 divisors (see below), whose sum is σ = 11511114661904. Its totient is φ = 10932666655680.

The previous prime is 11221233331109. The next prime is 11221233331213. The reversal of 11221233331111 is 11113333212211.

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

It is not a de Polignac number, because 11221233331111 - 2¹ = 11221233331109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221233334111) 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, 328646550 + ... + 328680691.

It is an arithmetic number, because the mean of its divisors is an integer number (1438889332738).

Almost surely, 2^{11221233331111} is an apocalyptic number.

11221233331111 is a deficient number, since it is larger than the sum of its proper divisors (289881330793).

11221233331111 is an equidigital number, since it uses as much as digits as its factorization.

11221233331111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657327681.

The product of its digits is 648, while the sum is 25.

Adding to 11221233331111 its reverse (11113333212211), we get a palindrome (22334566543322).

The spelling of 11221233331111 in words is "eleven trillion, two hundred twenty-one billion, two hundred thirty-three million, three hundred thirty-one thousand, one hundred eleven".