11011011020221 has 8 divisors (see below), whose sum is σ = 11183014166240. Its totient is φ = 10839233159568.

The previous prime is 11011011020213. The next prime is 11011011020227. The reversal of 11011011020221 is 12202011011011.

It is a happy number.

11011011020221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11011011020221 - 2³ = 11011011020213 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 (11011011020227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56222826 + ... + 56418331.

It is an arithmetic number, because the mean of its divisors is an integer number (1397876770780).

Almost surely, 2^{11011011020221} is an apocalyptic number.

It is an amenable number.

11011011020221 is a deficient number, since it is larger than the sum of its proper divisors (172003146019).

11011011020221 is a wasteful number, since it uses less digits than its factorization.

11011011020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112642683.

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

Adding to 11011011020221 its reverse (12202011011011), we get a palindrome (23213022031232).

The spelling of 11011011020221 in words is "eleven trillion, eleven billion, eleven million, twenty thousand, two hundred twenty-one".