11232215122111 has 4 divisors (see below), whose sum is σ = 11232852356232. Its totient is φ = 11231577887992.

The previous prime is 11232215122109. The next prime is 11232215122127. The reversal of 11232215122111 is 11122151223211.

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 11232215122111 - 2¹ = 11232215122109 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 (11232215123111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318590620 + ... + 318625873.

It is an arithmetic number, because the mean of its divisors is an integer number (2808213089058).

Almost surely, 2^{11232215122111} is an apocalyptic number.

11232215122111 is a deficient number, since it is larger than the sum of its proper divisors (637234121).

11232215122111 is an equidigital number, since it uses as much as digits as its factorization.

11232215122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637234120.

The product of its digits is 480, while the sum is 25.

Adding to 11232215122111 its reverse (11122151223211), we get a palindrome (22354366345322).

The spelling of 11232215122111 in words is "eleven trillion, two hundred thirty-two billion, two hundred fifteen million, one hundred twenty-two thousand, one hundred eleven".