11001001222201 has 8 divisors (see below), whose sum is σ = 11648739750984. Its totient is φ = 10353331672320.

The previous prime is 11001001222181. The next prime is 11001001222207. The reversal of 11001001222201 is 10222210010011.

It can be written as a sum of positive squares in 4 ways, for example, as 7267310682025 + 3733690540176 = 2695795^2 + 1932276^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11001001222201 - 2³³ = 10992411287609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11001001222207) 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 7 ways as a sum of consecutive naturals, for example, 16916190 + ... + 17554471.

It is an arithmetic number, because the mean of its divisors is an integer number (1456092468873).

Almost surely, 2^{11001001222201} is an apocalyptic number.

It is an amenable number.

11001001222201 is a deficient number, since it is larger than the sum of its proper divisors (647738528783).

11001001222201 is a wasteful number, since it uses less digits than its factorization.

11001001222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34489451.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11001001222201 its reverse (10222210010011), we get a palindrome (21223211232212).

The spelling of 11001001222201 in words is "eleven trillion, one billion, one million, two hundred twenty-two thousand, two hundred one".