20200021120011 has 16 divisors (see below), whose sum is σ = 27245018393120. Its totient is φ = 13311439223040.

The previous prime is 20200021119923. The next prime is 20200021120063. The reversal of 20200021120011 is 11002112000202.

It is not a de Polignac number, because 20200021120011 - 2²⁵ = 20199987565579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20200021124011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73227850 + ... + 73503183.

It is an arithmetic number, because the mean of its divisors is an integer number (1702813649570).

Almost surely, 2^{20200021120011} is an apocalyptic number.

20200021120011 is a deficient number, since it is larger than the sum of its proper divisors (7044997273109).

20200021120011 is a wasteful number, since it uses less digits than its factorization.

20200021120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146731566.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20200021120011 its reverse (11002112000202), we get a palindrome (31202133120213).

The spelling of 20200021120011 in words is "twenty trillion, two hundred billion, twenty-one million, one hundred twenty thousand, eleven".