20202100011211 has 2 divisors, whose sum is σ = 20202100011212. Its totient is φ = 20202100011210.

The previous prime is 20202100011209. The next prime is 20202100011227. The reversal of 20202100011211 is 11211000120202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20202100011211 - 2¹ = 20202100011209 is a prime.

Together with 20202100011209, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20202100011191 and 20202100011200.

It is not a weakly prime, because it can be changed into another prime (20202100011241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101050005605 + 10101050005606.

It is an arithmetic number, because the mean of its divisors is an integer number (10101050005606).

Almost surely, 2^{20202100011211} is an apocalyptic number.

20202100011211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202100011211 is an equidigital number, since it uses as much as digits as its factorization.

20202100011211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20202100011211 its reverse (11211000120202), we get a palindrome (31413100131413).

The spelling of 20202100011211 in words is "twenty trillion, two hundred two billion, one hundred million, eleven thousand, two hundred eleven".