211021120020211 has 8 divisors (see below), whose sum is σ = 212746924134144. Its totient is φ = 209299635817800.

The previous prime is 211021120020181. The next prime is 211021120020229. The reversal of 211021120020211 is 112020021120112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211021120020211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211021120020811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1079879785 + ... + 1080075178.

It is an arithmetic number, because the mean of its divisors is an integer number (26593365516768).

Almost surely, 2^{211021120020211} is an apocalyptic number.

211021120020211 is a deficient number, since it is larger than the sum of its proper divisors (1725804113933).

211021120020211 is a wasteful number, since it uses less digits than its factorization.

211021120020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159955761.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211021120020211 its reverse (112020021120112), we get a palindrome (323041141140323).

The spelling of 211021120020211 in words is "two hundred eleven trillion, twenty-one billion, one hundred twenty million, twenty thousand, two hundred eleven".