12122133311 has 4 divisors (see below), whose sum is σ = 12404043432. Its totient is φ = 11840223192.

The previous prime is 12122133299. The next prime is 12122133319. The reversal of 12122133311 is 11333122121.

It is a happy number.

12122133311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11333122121 = 10133 ⋅1118437.

It is a cyclic number.

It is not a de Polignac number, because 12122133311 - 2¹⁴ = 12122116927 is a prime.

It is a super-2 number, since 2×12122133311² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122133319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140954996 + ... + 140955081.

It is an arithmetic number, because the mean of its divisors is an integer number (3101010858).

Almost surely, 2^12122133311 is an apocalyptic number.

12122133311 is a deficient number, since it is larger than the sum of its proper divisors (281910121).

12122133311 is an equidigital number, since it uses as much as digits as its factorization.

12122133311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281910120.

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

Adding to 12122133311 its reverse (11333122121), we get a palindrome (23455255432).

The spelling of 12122133311 in words is "twelve billion, one hundred twenty-two million, one hundred thirty-three thousand, three hundred eleven".