20052122105 has 16 divisors (see below), whose sum is σ = 24536348928. Its totient is φ = 15728328000.

The previous prime is 20052122099. The next prime is 20052122113. The reversal of 20052122105 is 50122125002.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-20052122105 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91781 + ... + 220290.

It is an arithmetic number, because the mean of its divisors is an integer number (1533521808).

Almost surely, 2^20052122105 is an apocalyptic number.

It is an amenable number.

20052122105 is a deficient number, since it is larger than the sum of its proper divisors (4484226823).

20052122105 is a wasteful number, since it uses less digits than its factorization.

20052122105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312328.

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 20052122105 its reverse (50122125002), we get a palindrome (70174247107).

The spelling of 20052122105 in words is "twenty billion, fifty-two million, one hundred twenty-two thousand, one hundred five".