20221020210211 has 2 divisors, whose sum is σ = 20221020210212. Its totient is φ = 20221020210210.

The previous prime is 20221020210163. The next prime is 20221020210233. The reversal of 20221020210211 is 11201202012202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20221020210211 - 2⁹ = 20221020209699 is a prime.

It is not a weakly prime, because it can be changed into another prime (20221020210271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110510105105 + 10110510105106.

It is an arithmetic number, because the mean of its divisors is an integer number (10110510105106).

Almost surely, 2^{20221020210211} is an apocalyptic number.

20221020210211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221020210211 is an equidigital number, since it uses as much as digits as its factorization.

20221020210211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20221020210211 its reverse (11201202012202), we get a palindrome (31422222222413).

The spelling of 20221020210211 in words is "twenty trillion, two hundred twenty-one billion, twenty million, two hundred ten thousand, two hundred eleven".