11321221330111 has 16 divisors (see below), whose sum is σ = 14115137264640. Its totient is φ = 8821501022880.

The previous prime is 11321221330103. The next prime is 11321221330129. The reversal of 11321221330111 is 11103312212311.

It is not a de Polignac number, because 11321221330111 - 2³ = 11321221330103 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 (11321221330171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1088745 + ... + 4881373.

It is an arithmetic number, because the mean of its divisors is an integer number (882196079040).

Almost surely, 2^{11321221330111} is an apocalyptic number.

11321221330111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11321221330111 is a deficient number, since it is larger than the sum of its proper divisors (2793915934529).

11321221330111 is a wasteful number, since it uses less digits than its factorization.

11321221330111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3831414.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 11321221330111 its reverse (11103312212311), we get a palindrome (22424533542422).

The spelling of 11321221330111 in words is "eleven trillion, three hundred twenty-one billion, two hundred twenty-one million, three hundred thirty thousand, one hundred eleven".