211200200000101 has 4 divisors (see below), whose sum is σ = 227446369230892. Its totient is φ = 194954030769312.

The previous prime is 211200200000099. The next prime is 211200200000173. The reversal of 211200200000101 is 101000002002112.

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 27933856992001 + 183266343008100 = 5285249^2 + 13537590^2 .

It is a cyclic number.

It is not a de Polignac number, because 211200200000101 - 2¹ = 211200200000099 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 (211200200000501) 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, 8123084615376 + ... + 8123084615401.

It is an arithmetic number, because the mean of its divisors is an integer number (56861592307723).

Almost surely, 2^{211200200000101} is an apocalyptic number.

It is an amenable number.

211200200000101 is a deficient number, since it is larger than the sum of its proper divisors (16246169230791).

211200200000101 is a wasteful number, since it uses less digits than its factorization.

211200200000101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16246169230790.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 211200200000101 its reverse (101000002002112), we get a palindrome (312200202002213).

The spelling of 211200200000101 in words is "two hundred eleven trillion, two hundred billion, two hundred million, one hundred one", and thus it is an aban number.