211103321201 has 4 divisors (see below), whose sum is σ = 218382746100. Its totient is φ = 203823896304.

The previous prime is 211103321183. The next prime is 211103321227. The reversal of 211103321201 is 102123301112.

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 162163263025 + 48940058176 = 402695^2 + 221224^2 .

It is a cyclic number.

It is not a de Polignac number, because 211103321201 - 2¹⁴ = 211103304817 is a prime.

It is a super-2 number, since 2×211103321201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211103321201.

It is not an unprimeable number, because it can be changed into a prime (211103321501) 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, 3639712406 + ... + 3639712463.

It is an arithmetic number, because the mean of its divisors is an integer number (54595686525).

Almost surely, 2^211103321201 is an apocalyptic number.

It is an amenable number.

211103321201 is a deficient number, since it is larger than the sum of its proper divisors (7279424899).

211103321201 is an equidigital number, since it uses as much as digits as its factorization.

211103321201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7279424898.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 211103321201 its reverse (102123301112), we get a palindrome (313226622313).

The spelling of 211103321201 in words is "two hundred eleven billion, one hundred three million, three hundred twenty-one thousand, two hundred one".