11011022020111 has 4 divisors (see below), whose sum is σ = 11011029388552. Its totient is φ = 11011014651672.

The previous prime is 11011022020081. The next prime is 11011022020157. The reversal of 11011022020111 is 11102022011011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11011022020111 - 2¹¹ = 11011022018063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11011022020091 and 11011022020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011022090111) 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, 559041 + ... + 4725946.

It is an arithmetic number, because the mean of its divisors is an integer number (2752757347138).

Almost surely, 2^{11011022020111} is an apocalyptic number.

11011022020111 is a deficient number, since it is larger than the sum of its proper divisors (7368441).

11011022020111 is an equidigital number, since it uses as much as digits as its factorization.

11011022020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7368440.

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

Adding to 11011022020111 its reverse (11102022011011), we get a palindrome (22113044031122).

It can be divided in two parts, 1101102 and 2020111, that added together give a palindrome (3121213).

The spelling of 11011022020111 in words is "eleven trillion, eleven billion, twenty-two million, twenty thousand, one hundred eleven".