211002211022111 has 4 divisors (see below), whose sum is σ = 213373022382000. Its totient is φ = 208631399662224.

The previous prime is 211002211022059. The next prime is 211002211022117. The reversal of 211002211022111 is 111220112200112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211002211022111 - 2³⁰ = 211001137280287 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 211002211022111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211002211022117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1185405679811 + ... + 1185405679988.

It is an arithmetic number, because the mean of its divisors is an integer number (53343255595500).

Almost surely, 2^{211002211022111} is an apocalyptic number.

211002211022111 is a deficient number, since it is larger than the sum of its proper divisors (2370811359889).

211002211022111 is an equidigital number, since it uses as much as digits as its factorization.

211002211022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370811359888.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 211002211022111 its reverse (111220112200112), we get a palindrome (322222323222223).

The spelling of 211002211022111 in words is "two hundred eleven trillion, two billion, two hundred eleven million, twenty-two thousand, one hundred eleven".