2021210011 has 2 divisors, whose sum is σ = 2021210012. Its totient is φ = 2021210010.

The previous prime is 2021209921. The next prime is 2021210017. The reversal of 2021210011 is 1100121202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021210011 - 2¹¹ = 2021207963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2021210011.

It is not a weakly prime, because it can be changed into another prime (2021210017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010605005 + 1010605006.

It is an arithmetic number, because the mean of its divisors is an integer number (1010605006).

Almost surely, 2^2021210011 is an apocalyptic number.

2021210011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021210011 is an equidigital number, since it uses as much as digits as its factorization.

2021210011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2021210011 is about 44957.8692889243. The cubic root of 2021210011 is about 1264.3592209522.

Adding to 2021210011 its reverse (1100121202), we get a palindrome (3121331213).

The spelling of 2021210011 in words is "two billion, twenty-one million, two hundred ten thousand, eleven".