11100011210221 has 4 divisors (see below), whose sum is σ = 11482770217500. Its totient is φ = 10717252202944.

The previous prime is 11100011210177. The next prime is 11100011210231. The reversal of 11100011210221 is 12201211000111.

It is a happy number.

11100011210221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2672538344100 + 8427472866121 = 1634790^2 + 2903011^2 .

It is a cyclic number.

It is not a de Polignac number, because 11100011210221 - 2⁹ = 11100011209709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100011210231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191379503596 + ... + 191379503653.

It is an arithmetic number, because the mean of its divisors is an integer number (2870692554375).

Almost surely, 2^{11100011210221} is an apocalyptic number.

It is an amenable number.

11100011210221 is a deficient number, since it is larger than the sum of its proper divisors (382759007279).

11100011210221 is an equidigital number, since it uses as much as digits as its factorization.

11100011210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382759007278.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11100011210221 its reverse (12201211000111), we get a palindrome (23301222210332).

The spelling of 11100011210221 in words is "eleven trillion, one hundred billion, eleven million, two hundred ten thousand, two hundred twenty-one".