11002112001 has 6 divisors (see below), whose sum is σ = 15891939570. Its totient is φ = 7334741328.

The previous prime is 11002111987. The next prime is 11002112029. The reversal of 11002112001 is 10021120011.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5711731776 + 5290380225 = 75576^2 + 72735^2 .

It is not a de Polignac number, because 11002112001 - 2¹⁷ = 11001980929 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: 1222456889 = 11002112001 / (1 + 1 + 0 + 0 + 2 + 1 + 1 + 2 + 0 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (11002112081) 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, 611228436 + ... + 611228453.

It is an arithmetic number, because the mean of its divisors is an integer number (2648656595).

Almost surely, 2^11002112001 is an apocalyptic number.

It is an amenable number.

11002112001 is a deficient number, since it is larger than the sum of its proper divisors (4889827569).

11002112001 is a wasteful number, since it uses less digits than its factorization.

11002112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222456895 (or 1222456892 counting only the distinct ones).

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

Adding to 11002112001 its reverse (10021120011), we get a palindrome (21023232012).

The spelling of 11002112001 in words is "eleven billion, two million, one hundred twelve thousand, one".