21202100210211 has 96 divisors (see below), whose sum is σ = 29644374122496. Its totient is φ = 13475969740800.

The previous prime is 21202100210189. The next prime is 21202100210237. The reversal of 21202100210211 is 11201200120212.

It is not a de Polignac number, because 21202100210211 - 2¹⁰ = 21202100209187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21202100610211) 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 95 ways as a sum of consecutive naturals, for example, 22247743711 + ... + 22247744663.

It is an arithmetic number, because the mean of its divisors is an integer number (308795563776).

Almost surely, 2^{21202100210211} is an apocalyptic number.

21202100210211 is a deficient number, since it is larger than the sum of its proper divisors (8442273912285).

21202100210211 is a wasteful number, since it uses less digits than its factorization.

21202100210211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605 (or 1564 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21202100210211 its reverse (11201200120212), we get a palindrome (32403300330423).

The spelling of 21202100210211 in words is "twenty-one trillion, two hundred two billion, one hundred million, two hundred ten thousand, two hundred eleven".