11021222120011 has 4 divisors (see below), whose sum is σ = 11021231412952. Its totient is φ = 11021212827072.

The previous prime is 11021222120003. The next prime is 11021222120021. The reversal of 11021222120011 is 11002122212011.

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 11021222120011 - 2³ = 11021222120003 is a prime.

It is a super-2 number, since 2×11021222120011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11021222120021) 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, 2553141 + ... + 5344246.

It is an arithmetic number, because the mean of its divisors is an integer number (2755307853238).

Almost surely, 2^{11021222120011} is an apocalyptic number.

11021222120011 is a deficient number, since it is larger than the sum of its proper divisors (9292941).

11021222120011 is an equidigital number, since it uses as much as digits as its factorization.

11021222120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9292940.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11021222120011 its reverse (11002122212011), we get a palindrome (22023344332022).

The spelling of 11021222120011 in words is "eleven trillion, twenty-one billion, two hundred twenty-two million, one hundred twenty thousand, eleven".