11001020211 has 32 divisors (see below), whose sum is σ = 16675787520. Its totient is φ = 7165806912.

The previous prime is 11001020203. The next prime is 11001020243. The reversal of 11001020211 is 11202010011.

It is a happy number.

It is not a de Polignac number, because 11001020211 - 2³ = 11001020203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11001020193 and 11001020202.

It is not an unprimeable number, because it can be changed into a prime (11001020281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184816 + ... + 236978.

It is an arithmetic number, because the mean of its divisors is an integer number (521118360).

Almost surely, 2^11001020211 is an apocalyptic number.

11001020211 is a deficient number, since it is larger than the sum of its proper divisors (5674767309).

11001020211 is a wasteful number, since it uses less digits than its factorization.

11001020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52352 (or 52346 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11001020211 its reverse (11202010011), we get a palindrome (22203030222).

The spelling of 11001020211 in words is "eleven billion, one million, twenty thousand, two hundred eleven".