11002001211 has 6 divisors (see below), whose sum is σ = 15891779540. Its totient is φ = 7334667468.

The previous prime is 11002001209. The next prime is 11002001261. The reversal of 11002001211 is 11210020011.

It is a happy number.

It is not a de Polignac number, because 11002001211 - 2¹ = 11002001209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1222444579 = 11002001211 / (1 + 1 + 0 + 0 + 2 + 0 + 0 + 1 + 2 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11002001193 and 11002001202.

It is not an unprimeable number, because it can be changed into a prime (11002001261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 611222281 + ... + 611222298.

Almost surely, 2^11002001211 is an apocalyptic number.

11002001211 is a deficient number, since it is larger than the sum of its proper divisors (4889778329).

11002001211 is a wasteful number, since it uses less digits than its factorization.

11002001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222444585 (or 1222444582 counting only the distinct ones).

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

Adding to 11002001211 its reverse (11210020011), we get a palindrome (22212021222).

The spelling of 11002001211 in words is "eleven billion, two million, one thousand, two hundred eleven".