20200021011105 has 192 divisors, whose sum is σ = 37569763906560. Its totient is φ = 9230192345088.

The previous prime is 20200021010999. The next prime is 20200021011133. The reversal of 20200021011105 is 50111012000202.

It is not a de Polignac number, because 20200021011105 - 2¹² = 20200021007009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3326198349 + ... + 3326204421.

It is an arithmetic number, because the mean of its divisors is an integer number (195675853680).

Almost surely, 2^{20200021011105} is an apocalyptic number.

It is an amenable number.

20200021011105 is a deficient number, since it is larger than the sum of its proper divisors (17369742895455).

20200021011105 is a wasteful number, since it uses less digits than its factorization.

20200021011105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7180 (or 7167 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 20200021011105 its reverse (50111012000202), we get a palindrome (70311033011307).

The spelling of 20200021011105 in words is "twenty trillion, two hundred billion, twenty-one million, eleven thousand, one hundred five".