211100202101 has 4 divisors (see below), whose sum is σ = 211124505900. Its totient is φ = 211075898304.

The previous prime is 211100202041. The next prime is 211100202113. The reversal of 211100202101 is 101202001112.

211100202101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 195072388900 + 16027813201 = 441670^2 + 126601^2 .

It is a cyclic number.

It is not a de Polignac number, because 211100202101 - 2⁶ = 211100202037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211100202121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12138866 + ... + 12156243.

It is an arithmetic number, because the mean of its divisors is an integer number (52781126475).

Almost surely, 2^211100202101 is an apocalyptic number.

It is an amenable number.

211100202101 is a deficient number, since it is larger than the sum of its proper divisors (24303799).

211100202101 is an equidigital number, since it uses as much as digits as its factorization.

211100202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24303798.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 211100202101 its reverse (101202001112), we get a palindrome (312302203213).

The spelling of 211100202101 in words is "two hundred eleven billion, one hundred million, two hundred two thousand, one hundred one".