11000201222221 has 4 divisors (see below), whose sum is σ = 11207752188732. Its totient is φ = 10792650255712.

The previous prime is 11000201222161. The next prime is 11000201222237. The reversal of 11000201222221 is 12222210200011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7059043216996 + 3941158005225 = 2656886^2 + 1985235^2 .

It is a cyclic number.

It is not a de Polignac number, because 11000201222221 - 2¹⁹ = 11000200697933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11000201222195 and 11000201222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000201222281) 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 3 ways as a sum of consecutive naturals, for example, 103775483176 + ... + 103775483281.

It is an arithmetic number, because the mean of its divisors is an integer number (2801938047183).

Almost surely, 2^{11000201222221} is an apocalyptic number.

It is an amenable number.

11000201222221 is a deficient number, since it is larger than the sum of its proper divisors (207550966511).

11000201222221 is an equidigital number, since it uses as much as digits as its factorization.

11000201222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207550966510.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11000201222221 its reverse (12222210200011), we get a palindrome (23222411422232).

The spelling of 11000201222221 in words is "eleven trillion, two hundred one million, two hundred twenty-two thousand, two hundred twenty-one".