211002211101211 has 4 divisors (see below), whose sum is σ = 211089727574424. Its totient is φ = 210914694628000.

The previous prime is 211002211101167. The next prime is 211002211101229. The reversal of 211002211101211 is 112101112200112.

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 211002211101211 - 2⁹ = 211002211100699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211002211104211) 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, 43758232990 + ... + 43758237811.

It is an arithmetic number, because the mean of its divisors is an integer number (52772431893606).

Almost surely, 2^{211002211101211} is an apocalyptic number.

211002211101211 is a deficient number, since it is larger than the sum of its proper divisors (87516473213).

211002211101211 is an equidigital number, since it uses as much as digits as its factorization.

211002211101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87516473212.

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

Adding to 211002211101211 its reverse (112101112200112), we get a palindrome (323103323301323).

The spelling of 211002211101211 in words is "two hundred eleven trillion, two billion, two hundred eleven million, one hundred one thousand, two hundred eleven".