11020221011 has 4 divisors (see below), whose sum is σ = 11127213552. Its totient is φ = 10913228472.

The previous prime is 11020220993. The next prime is 11020221041. The reversal of 11020221011 is 11012202011.

11020221011 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 a de Polignac number, because none of the positive numbers 2^k-11020221011 is a prime.

It is a super-2 number, since 2×11020221011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11020220983 and 11020221001.

It is not an unprimeable number, because it can be changed into a prime (11020221041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53496116 + ... + 53496321.

It is an arithmetic number, because the mean of its divisors is an integer number (2781803388).

Almost surely, 2^11020221011 is an apocalyptic number.

11020221011 is a deficient number, since it is larger than the sum of its proper divisors (106992541).

11020221011 is a wasteful number, since it uses less digits than its factorization.

11020221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106992540.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11020221011 its reverse (11012202011), we get a palindrome (22032423022).

The spelling of 11020221011 in words is "eleven billion, twenty million, two hundred twenty-one thousand, eleven".