211201100000201 has 4 divisors (see below), whose sum is σ = 211333018240404. Its totient is φ = 211069181760000.

The previous prime is 211201100000159. The next prime is 211201100000213. The reversal of 211201100000201 is 102000001102112.

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 168940179294601 + 42260920705600 = 12997699^2 + 6500840^2 .

It is a cyclic number.

It is not a de Polignac number, because 211201100000201 - 2²² = 211201095805897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211201100030201) 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, 65959117700 + ... + 65959120901.

It is an arithmetic number, because the mean of its divisors is an integer number (52833254560101).

Almost surely, 2^{211201100000201} is an apocalyptic number.

It is an amenable number.

211201100000201 is a deficient number, since it is larger than the sum of its proper divisors (131918240203).

211201100000201 is a wasteful number, since it uses less digits than its factorization.

211201100000201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131918240202.

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

Adding to 211201100000201 its reverse (102000001102112), we get a palindrome (313201101102313).

The spelling of 211201100000201 in words is "two hundred eleven trillion, two hundred one billion, one hundred million, two hundred one", and thus it is an aban number.