211121101210201 has 80 divisors (see below), whose sum is σ = 279880934014080. Its totient is φ = 157982915946240.

The previous prime is 211121101210199. The next prime is 211121101210249. The reversal of 211121101210201 is 102012101121112.

It is not a de Polignac number, because 211121101210201 - 2¹ = 211121101210199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211121101219201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 62240866 + ... + 65545156.

It is an arithmetic number, because the mean of its divisors is an integer number (3498511675176).

Almost surely, 2^{211121101210201} is an apocalyptic number.

It is an amenable number.

211121101210201 is a deficient number, since it is larger than the sum of its proper divisors (68759832803879).

211121101210201 is an equidigital number, since it uses as much as digits as its factorization.

211121101210201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3304444 (or 3304423 counting only the distinct ones).

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

Adding to 211121101210201 its reverse (102012101121112), we get a palindrome (313133202331313).

The spelling of 211121101210201 in words is "two hundred eleven trillion, one hundred twenty-one billion, one hundred one million, two hundred ten thousand, two hundred one".