211001201211 has 32 divisors (see below), whose sum is σ = 284195132928. Its totient is φ = 139245765120.

The previous prime is 211001201209. The next prime is 211001201231. The reversal of 211001201211 is 112102100112.

It is not a de Polignac number, because 211001201211 - 2¹ = 211001201209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211001201231) 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 31 ways as a sum of consecutive naturals, for example, 239501491 + ... + 239502371.

It is an arithmetic number, because the mean of its divisors is an integer number (8881097904).

Almost surely, 2^211001201211 is an apocalyptic number.

211001201211 is a deficient number, since it is larger than the sum of its proper divisors (73193931717).

211001201211 is a wasteful number, since it uses less digits than its factorization.

211001201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 211001201211 its reverse (112102100112), we get a palindrome (323103301323).

The spelling of 211001201211 in words is "two hundred eleven billion, one million, two hundred one thousand, two hundred eleven".