212121210002211 has 32 divisors (see below), whose sum is σ = 315249456614400. Its totient is φ = 140966325673920.

The previous prime is 212121210002203. The next prime is 212121210002237. The reversal of 212121210002211 is 112200012121212.

212121210002211 is a `hidden beast` number, since 21 + 212 + 1 + 210 + 0 + 0 + 221 + 1 = 666.

It is not a de Polignac number, because 212121210002211 - 2³ = 212121210002203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212121210102211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21185466 + ... + 29547696.

It is an arithmetic number, because the mean of its divisors is an integer number (9851545519200).

Almost surely, 2^{212121210002211} is an apocalyptic number.

212121210002211 is a deficient number, since it is larger than the sum of its proper divisors (103128246612189).

212121210002211 is a wasteful number, since it uses less digits than its factorization.

212121210002211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8365216 (or 8365210 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212121210002211 its reverse (112200012121212), we get a palindrome (324321222123423).

The spelling of 212121210002211 in words is "two hundred twelve trillion, one hundred twenty-one billion, two hundred ten million, two thousand, two hundred eleven".