11021211210211 has 4 divisors (see below), whose sum is σ = 11021236009000. Its totient is φ = 11021186411424.

The previous prime is 11021211210203. The next prime is 11021211210253. The reversal of 11021211210211 is 11201211212011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11021211210211 - 2³ = 11021211210203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11021211220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11720361 + ... + 12625738.

It is an arithmetic number, because the mean of its divisors is an integer number (2755309002250).

Almost surely, 2^{11021211210211} is an apocalyptic number.

11021211210211 is a deficient number, since it is larger than the sum of its proper divisors (24798789).

11021211210211 is an equidigital number, since it uses as much as digits as its factorization.

11021211210211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24798788.

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

Adding to 11021211210211 its reverse (11201211212011), we get a palindrome (22222422422222).

The spelling of 11021211210211 in words is "eleven trillion, twenty-one billion, two hundred eleven million, two hundred ten thousand, two hundred eleven".