20201011211 has 4 divisors (see below), whose sum is σ = 20255169792. Its totient is φ = 20146852632.

The previous prime is 20201011183. The next prime is 20201011217. The reversal of 20201011211 is 11211010202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20201011211 - 2¹⁰ = 20201010187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20201011192 and 20201011201.

It is not an unprimeable number, because it can be changed into a prime (20201011217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27078731 + ... + 27079476.

It is an arithmetic number, because the mean of its divisors is an integer number (5063792448).

Almost surely, 2^20201011211 is an apocalyptic number.

20201011211 is a deficient number, since it is larger than the sum of its proper divisors (54158581).

20201011211 is an equidigital number, since it uses as much as digits as its factorization.

20201011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54158580.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20201011211 its reverse (11211010202), we get a palindrome (31412021413).

The spelling of 20201011211 in words is "twenty billion, two hundred one million, eleven thousand, two hundred eleven".