212122020221211 has 64 divisors (see below), whose sum is σ = 299590072492032. Its totient is φ = 133230383311872.

The previous prime is 212122020221129. The next prime is 212122020221249. The reversal of 212122020221211 is 112122020221212.

It is not a de Polignac number, because 212122020221211 - 2³³ = 212113430286619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212122020221311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14723531370 + ... + 14723545776.

It is an arithmetic number, because the mean of its divisors is an integer number (4681094882688).

Almost surely, 2^{212122020221211} is an apocalyptic number.

212122020221211 is a deficient number, since it is larger than the sum of its proper divisors (87468052270821).

212122020221211 is a wasteful number, since it uses less digits than its factorization.

212122020221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22152.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 212122020221211 its reverse (112122020221212), we get a palindrome (324244040442423).

Subtracting from 212122020221211 its reverse (112122020221212), we obtain a palindrome (99999999999999).

The spelling of 212122020221211 in words is "two hundred twelve trillion, one hundred twenty-two billion, twenty million, two hundred twenty-one thousand, two hundred eleven".