11000221100021 has 12 divisors (see below), whose sum is σ = 11798806068192. Its totient is φ = 10252633230528.

The previous prime is 11000221099999. The next prime is 11000221100027. The reversal of 11000221100021 is 12000112200011.

It is not a de Polignac number, because 11000221100021 - 2¹⁸ = 11000220837877 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11000221099975 and 11000221100011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000221100027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184742315 + ... + 184801848.

It is an arithmetic number, because the mean of its divisors is an integer number (983233839016).

Almost surely, 2^{11000221100021} is an apocalyptic number.

It is an amenable number.

11000221100021 is a deficient number, since it is larger than the sum of its proper divisors (798584968171).

11000221100021 is a wasteful number, since it uses less digits than its factorization.

11000221100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369544300 (or 369544283 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11000221100021 its reverse (12000112200011), we get a palindrome (23000333300032).

The spelling of 11000221100021 in words is "eleven trillion, two hundred twenty-one million, one hundred thousand, twenty-one".