21210102010211 has 2 divisors, whose sum is σ = 21210102010212. Its totient is φ = 21210102010210.

The previous prime is 21210102010183. The next prime is 21210102010219. The reversal of 21210102010211 is 11201020101212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21210102010211 is a prime.

It is not a weakly prime, because it can be changed into another prime (21210102010219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10605051005105 + 10605051005106.

It is an arithmetic number, because the mean of its divisors is an integer number (10605051005106).

Almost surely, 2^{21210102010211} is an apocalyptic number.

21210102010211 is a deficient number, since it is larger than the sum of its proper divisors (1).

21210102010211 is an equidigital number, since it uses as much as digits as its factorization.

21210102010211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21210102010211 its reverse (11201020101212), we get a palindrome (32411122111423).

The spelling of 21210102010211 in words is "twenty-one trillion, two hundred ten billion, one hundred two million, ten thousand, two hundred eleven".