11022120011 has 4 divisors (see below), whose sum is σ = 12596708592. Its totient is φ = 9447531432.

The previous prime is 11022119993. The next prime is 11022120013. The reversal of 11022120011 is 11002122011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11022120011 - 2¹⁸ = 11021857867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11022119974 and 11022120001.

It is not an unprimeable number, because it can be changed into a prime (11022120013) 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, 787294280 + ... + 787294293.

It is an arithmetic number, because the mean of its divisors is an integer number (3149177148).

Almost surely, 2^11022120011 is an apocalyptic number.

11022120011 is a deficient number, since it is larger than the sum of its proper divisors (1574588581).

11022120011 is an equidigital number, since it uses as much as digits as its factorization.

11022120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574588580.

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

Adding to 11022120011 its reverse (11002122011), we get a palindrome (22024242022).

The spelling of 11022120011 in words is "eleven billion, twenty-two million, one hundred twenty thousand, eleven".