2021122012211 has 32 divisors (see below), whose sum is σ = 2084169104640. Its totient is φ = 1959307674624.

The previous prime is 2021122012109. The next prime is 2021122012229. The reversal of 2021122012211 is 1122102211202.

It is a cyclic number.

It is not a de Polignac number, because 2021122012211 - 2¹⁰ = 2021122011187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021122012211.

It is not an unprimeable number, because it can be changed into a prime (2021122012271) 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 31 ways as a sum of consecutive naturals, for example, 1301430011 + ... + 1301431563.

It is an arithmetic number, because the mean of its divisors is an integer number (65130284520).

Almost surely, 2^{2021122012211} is an apocalyptic number.

2021122012211 is a deficient number, since it is larger than the sum of its proper divisors (63047092429).

2021122012211 is a wasteful number, since it uses less digits than its factorization.

2021122012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2675.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2021122012211 its reverse (1122102211202), we get a palindrome (3143224223413).

The spelling of 2021122012211 in words is "two trillion, twenty-one billion, one hundred twenty-two million, twelve thousand, two hundred eleven".