21021010002211 has 2 divisors, whose sum is σ = 21021010002212. Its totient is φ = 21021010002210.

The previous prime is 21021010002079. The next prime is 21021010002217. The reversal of 21021010002211 is 11220001012012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21021010002211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21021010002191 and 21021010002200.

It is not a weakly prime, because it can be changed into another prime (21021010002217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10510505001105 + 10510505001106.

It is an arithmetic number, because the mean of its divisors is an integer number (10510505001106).

Almost surely, 2^{21021010002211} is an apocalyptic number.

21021010002211 is a deficient number, since it is larger than the sum of its proper divisors (1).

21021010002211 is an equidigital number, since it uses as much as digits as its factorization.

21021010002211 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 21021010002211 its reverse (11220001012012), we get a palindrome (32241011014223).

The spelling of 21021010002211 in words is "twenty-one trillion, twenty-one billion, ten million, two thousand, two hundred eleven".