11021111111011 has 8 divisors (see below), whose sum is σ = 11638847566080. Its totient is φ = 10414921131912.

The previous prime is 11021111110969. The next prime is 11021111111039. The reversal of 11021111111011 is 11011111112011.

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 11021111111011 - 2¹⁹ = 11021110586723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11021111110982 and 11021111111000.

It is not an unprimeable number, because it can be changed into a prime (11021111111111) 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, 2886617031 + ... + 2886620848.

It is an arithmetic number, because the mean of its divisors is an integer number (1454855945760).

Almost surely, 2^{11021111111011} is an apocalyptic number.

11021111111011 is a deficient number, since it is larger than the sum of its proper divisors (617736455069).

11021111111011 is an equidigital number, since it uses as much as digits as its factorization.

11021111111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5773237985.

The product of its (nonzero) digits is 2, while the sum is 13.

Adding to 11021111111011 its reverse (11011111112011), we get a palindrome (22032222223022).

It can be divided in two parts, 1102111 and 1111011, that added together give a palindrome (2213122).

The spelling of 11021111111011 in words is "eleven trillion, twenty-one billion, one hundred eleven million, one hundred eleven thousand, eleven".