11000221001 has 16 divisors (see below), whose sum is σ = 13919262720. Its totient is φ = 8443662480.

The previous prime is 11000220997. The next prime is 11000221003. The reversal of 11000221001 is 10012200011.

It is not a de Polignac number, because 11000221001 - 2² = 11000220997 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11000221001.

It is not an unprimeable number, because it can be changed into a prime (11000221003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1060961 + ... + 1071278.

It is an arithmetic number, because the mean of its divisors is an integer number (869953920).

Almost surely, 2^11000221001 is an apocalyptic number.

11000221001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11000221001 is a deficient number, since it is larger than the sum of its proper divisors (2919041719).

11000221001 is a wasteful number, since it uses less digits than its factorization.

11000221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132324.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 11000221001 its reverse (10012200011), we get a palindrome (21012421012).

The spelling of 11000221001 in words is "eleven billion, two hundred twenty-one thousand, one".