12021122005 has 8 divisors (see below), whose sum is σ = 14443680672. Its totient is φ = 9604674768.

The previous prime is 12021121997. The next prime is 12021122033. The reversal of 12021122005 is 50022112021.

It is a happy number.

12021122005 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 a cyclic number.

It is not a de Polignac number, because 12021122005 - 2³ = 12021121997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12021122005.

It is a congruent number.

It is an unprimeable number.

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, 1523527 + ... + 1531396.

It is an arithmetic number, because the mean of its divisors is an integer number (1805460084).

Almost surely, 2^12021122005 is an apocalyptic number.

It is an amenable number.

12021122005 is a deficient number, since it is larger than the sum of its proper divisors (2422558667).

12021122005 is an equidigital number, since it uses as much as digits as its factorization.

12021122005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3055715.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 12021122005 its reverse (50022112021), we get a palindrome (62043234026).

The spelling of 12021122005 in words is "twelve billion, twenty-one million, one hundred twenty-two thousand, five".