11010101120221 has 24 divisors (see below), whose sum is σ = 13080671976960. Its totient is φ = 9236084532192.

The previous prime is 11010101120209. The next prime is 11010101120243. The reversal of 11010101120221 is 12202110101011.

It is a happy number.

11010101120221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11010101120221 - 2¹⁷ = 11010100989149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11010101120521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72844395 + ... + 72995383.

It is an arithmetic number, because the mean of its divisors is an integer number (545027999040).

Almost surely, 2^{11010101120221} is an apocalyptic number.

It is an amenable number.

11010101120221 is a deficient number, since it is larger than the sum of its proper divisors (2070570856739).

11010101120221 is a wasteful number, since it uses less digits than its factorization.

11010101120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182713 (or 182706 counting only the distinct ones).

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

Adding to 11010101120221 its reverse (12202110101011), we get a palindrome (23212211221232).

The spelling of 11010101120221 in words is "eleven trillion, ten billion, one hundred one million, one hundred twenty thousand, two hundred twenty-one".