12122122011 has 8 divisors (see below), whose sum is σ = 16190087760. Its totient is φ = 8067785472.

The previous prime is 12122121989. The next prime is 12122122049. The reversal of 12122122011 is 11022122121.

12122122011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12122122011 - 2⁹ = 12122121499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12122122081) 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 7 ways as a sum of consecutive naturals, for example, 3405226 + ... + 3408783.

It is an arithmetic number, because the mean of its divisors is an integer number (2023760970).

Almost surely, 2^12122122011 is an apocalyptic number.

12122122011 is a deficient number, since it is larger than the sum of its proper divisors (4067965749).

12122122011 is an equidigital number, since it uses as much as digits as its factorization.

12122122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6814605.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12122122011 its reverse (11022122121), we get a palindrome (23144244132).

The spelling of 12122122011 in words is "twelve billion, one hundred twenty-two million, one hundred twenty-two thousand, eleven".