211122202102221 has 16 divisors (see below), whose sum is σ = 281668434704064. Its totient is φ = 140662054103424.

The previous prime is 211122202102219. The next prime is 211122202102247. The reversal of 211122202102221 is 122201202221112.

It is not a de Polignac number, because 211122202102221 - 2¹ = 211122202102219 is a prime.

It is a super-3 number, since 3×211122202102221³ (a number of 44 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211122202101221) 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, 547902001 + ... + 548287193.

It is an arithmetic number, because the mean of its divisors is an integer number (17604277169004).

Almost surely, 2^{211122202102221} is an apocalyptic number.

It is an amenable number.

211122202102221 is a deficient number, since it is larger than the sum of its proper divisors (70546232601843).

211122202102221 is a wasteful number, since it uses less digits than its factorization.

211122202102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496460.

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

Adding to 211122202102221 its reverse (122201202221112), we get a palindrome (333323404323333).

The spelling of 211122202102221 in words is "two hundred eleven trillion, one hundred twenty-two billion, two hundred two million, one hundred two thousand, two hundred twenty-one".