11000001100221 has 48 divisors (see below), whose sum is σ = 18654009088000. Its totient is φ = 6114354833664.

The previous prime is 11000001100189. The next prime is 11000001100237. The reversal of 11000001100221 is 12200110000011.

It is a happy number.

It is not a de Polignac number, because 11000001100221 - 2⁵ = 11000001100189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000001100241) 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 47 ways as a sum of consecutive naturals, for example, 9127305 + ... + 10261953.

Almost surely, 2^{11000001100221} is an apocalyptic number.

It is an amenable number.

11000001100221 is a deficient number, since it is larger than the sum of its proper divisors (7654007987779).

11000001100221 is a wasteful number, since it uses less digits than its factorization.

11000001100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138858 (or 1138855 counting only the distinct ones).

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

Adding to 11000001100221 its reverse (12200110000011), we get a palindrome (23200111100232).

The spelling of 11000001100221 in words is "eleven trillion, one million, one hundred thousand, two hundred twenty-one".