211220210201 has 48 divisors (see below), whose sum is σ = 289062115200. Its totient is φ = 149844764160.

The previous prime is 211220210197. The next prime is 211220210237. The reversal of 211220210201 is 102012022112.

It is not a de Polignac number, because 211220210201 - 2² = 211220210197 is a prime.

It is a super-2 number, since 2×211220210201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211220210281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 838775 + ... + 1061123.

It is an arithmetic number, because the mean of its divisors is an integer number (6022127400).

Almost surely, 2^211220210201 is an apocalyptic number.

It is an amenable number.

211220210201 is a deficient number, since it is larger than the sum of its proper divisors (77841904999).

211220210201 is a wasteful number, since it uses less digits than its factorization.

211220210201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222466 (or 222453 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 211220210201 its reverse (102012022112), we get a palindrome (313232232313).

The spelling of 211220210201 in words is "two hundred eleven billion, two hundred twenty million, two hundred ten thousand, two hundred one".