11001020221211 has 4 divisors (see below), whose sum is σ = 11269337787624. Its totient is φ = 10732702654800.

The previous prime is 11001020221183. The next prime is 11001020221223. The reversal of 11001020221211 is 11212202010011.

11001020221211 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 is a cyclic number.

It is not a de Polignac number, because 11001020221211 - 2³⁸ = 10726142314267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11001020223211) 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, 134158783145 + ... + 134158783226.

It is an arithmetic number, because the mean of its divisors is an integer number (2817334446906).

Almost surely, 2^{11001020221211} is an apocalyptic number.

11001020221211 is a deficient number, since it is larger than the sum of its proper divisors (268317566413).

11001020221211 is an equidigital number, since it uses as much as digits as its factorization.

11001020221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268317566412.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11001020221211 its reverse (11212202010011), we get a palindrome (22213222231222).

The spelling of 11001020221211 in words is "eleven trillion, one billion, twenty million, two hundred twenty-one thousand, two hundred eleven".