212011222020211 has 16 divisors (see below), whose sum is σ = 214762070577600. Its totient is φ = 209273796615168.

The previous prime is 212011222020209. The next prime is 212011222020217. The reversal of 212011222020211 is 112020222110212.

It is a cyclic number.

It is not a de Polignac number, because 212011222020211 - 2¹ = 212011222020209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212011222020217) 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 15 ways as a sum of consecutive naturals, for example, 417973195 + ... + 418480123.

It is an arithmetic number, because the mean of its divisors is an integer number (13422629411100).

Almost surely, 2^{212011222020211} is an apocalyptic number.

212011222020211 is a deficient number, since it is larger than the sum of its proper divisors (2750848557389).

212011222020211 is a wasteful number, since it uses less digits than its factorization.

212011222020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520158.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212011222020211 its reverse (112020222110212), we get a palindrome (324031444130423).

Subtracting from 212011222020211 its reverse (112020222110212), we obtain a palindrome (99990999909999).

It can be divided in two parts, 212011 and 222020211, that added together give a palindrome (222232222).

The spelling of 212011222020211 in words is "two hundred twelve trillion, eleven billion, two hundred twenty-two million, twenty thousand, two hundred eleven".