211011212102011 has 4 divisors (see below), whose sum is σ = 211015616383024. Its totient is φ = 211006807821000.

The previous prime is 211011212101957. The next prime is 211011212102057. The reversal of 211011212102011 is 110201212110112.

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 211011212102011 - 2⁹ = 211011212101499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211011218102011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2202068640 + ... + 2202164461.

It is an arithmetic number, because the mean of its divisors is an integer number (52753904095756).

Almost surely, 2^{211011212102011} is an apocalyptic number.

211011212102011 is a deficient number, since it is larger than the sum of its proper divisors (4404281013).

211011212102011 is an equidigital number, since it uses as much as digits as its factorization.

211011212102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4404281012.

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

Adding to 211011212102011 its reverse (110201212110112), we get a palindrome (321212424212123).

The spelling of 211011212102011 in words is "two hundred eleven trillion, eleven billion, two hundred twelve million, one hundred two thousand, eleven".