20201222210011 has 2 divisors, whose sum is σ = 20201222210012. Its totient is φ = 20201222210010.

The previous prime is 20201222209901. The next prime is 20201222210021. The reversal of 20201222210011 is 11001222210202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20201222210011 - 2²³ = 20201213821403 is a prime.

It is not a weakly prime, because it can be changed into another prime (20201222210021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100611105005 + 10100611105006.

It is an arithmetic number, because the mean of its divisors is an integer number (10100611105006).

Almost surely, 2^{20201222210011} is an apocalyptic number.

20201222210011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201222210011 is an equidigital number, since it uses as much as digits as its factorization.

20201222210011 is an odious number, because the sum of its binary digits is odd.

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

Adding to 20201222210011 its reverse (11001222210202), we get a palindrome (31202444420213).

The spelling of 20201222210011 in words is "twenty trillion, two hundred one billion, two hundred twenty-two million, two hundred ten thousand, eleven".