211102203101 has 4 divisors (see below), whose sum is σ = 223519979772. Its totient is φ = 198684426432.

The previous prime is 211102203083. The next prime is 211102203119. The reversal of 211102203101 is 101302201112.

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

It is an interprime number because it is at equal distance from previous prime (211102203083) and next prime (211102203119).

It can be written as a sum of positive squares in 2 ways, for example, as 176404200025 + 34698003076 = 420005^2 + 186274^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211102203101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211102203001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6208888310 + ... + 6208888343.

It is an arithmetic number, because the mean of its divisors is an integer number (55879994943).

Almost surely, 2^211102203101 is an apocalyptic number.

It is an amenable number.

211102203101 is a deficient number, since it is larger than the sum of its proper divisors (12417776671).

211102203101 is a wasteful number, since it uses less digits than its factorization.

211102203101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12417776670.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 211102203101 its reverse (101302201112), we get a palindrome (312404404213).

The spelling of 211102203101 in words is "two hundred eleven billion, one hundred two million, two hundred three thousand, one hundred one".