21010200212011 has 2 divisors, whose sum is σ = 21010200212012. Its totient is φ = 21010200212010.

The previous prime is 21010200212003. The next prime is 21010200212017. The reversal of 21010200212011 is 11021200201012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21010200212011 - 2³ = 21010200212003 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21010200211982 and 21010200212000.

It is not a weakly prime, because it can be changed into another prime (21010200212017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505100106005 + 10505100106006.

It is an arithmetic number, because the mean of its divisors is an integer number (10505100106006).

Almost surely, 2^{21010200212011} is an apocalyptic number.

21010200212011 is a deficient number, since it is larger than the sum of its proper divisors (1).

21010200212011 is an equidigital number, since it uses as much as digits as its factorization.

21010200212011 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 21010200212011 its reverse (11021200201012), we get a palindrome (32031400413023).

The spelling of 21010200212011 in words is "twenty-one trillion, ten billion, two hundred million, two hundred twelve thousand, eleven".