211000221110201 has 4 divisors (see below), whose sum is σ = 213089332210404. Its totient is φ = 208911110010000.

The previous prime is 211000221110197. The next prime is 211000221110209. The reversal of 211000221110201 is 102011122000112.

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 198166996752400 + 12833224357801 = 14077180^2 + 3582349^2 .

It is a cyclic number.

It is not a de Polignac number, because 211000221110201 - 2² = 211000221110197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (211000221110209) 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, 1044555549950 + ... + 1044555550151.

It is an arithmetic number, because the mean of its divisors is an integer number (53272333052601).

Almost surely, 2^{211000221110201} is an apocalyptic number.

It is an amenable number.

211000221110201 is a deficient number, since it is larger than the sum of its proper divisors (2089111100203).

211000221110201 is a wasteful number, since it uses less digits than its factorization.

211000221110201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089111100202.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211000221110201 its reverse (102011122000112), we get a palindrome (313011343110313).

The spelling of 211000221110201 in words is "two hundred eleven trillion, two hundred twenty-one million, one hundred ten thousand, two hundred one".