11001201211 has 64 divisors (see below), whose sum is σ = 15874790400. Its totient is φ = 7335567360.

The previous prime is 11001201209. The next prime is 11001201223. The reversal of 11001201211 is 11210210011.

11001201211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11001201211 - 2¹ = 11001201209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11001201241) 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 63 ways as a sum of consecutive naturals, for example, 1135315 + ... + 1144963.

It is an arithmetic number, because the mean of its divisors is an integer number (248043600).

Almost surely, 2^11001201211 is an apocalyptic number.

11001201211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11001201211 is a deficient number, since it is larger than the sum of its proper divisors (4873589189).

11001201211 is a wasteful number, since it uses less digits than its factorization.

11001201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9764.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11001201211 its reverse (11210210011), we get a palindrome (22211411222).

It can be divided in two parts, 11001 and 201211, that added together give a palindrome (212212).

The spelling of 11001201211 in words is "eleven billion, one million, two hundred one thousand, two hundred eleven".