11221101222011 has 4 divisors (see below), whose sum is σ = 11233076784552. Its totient is φ = 11209125659472.

The previous prime is 11221101222007. The next prime is 11221101222029. The reversal of 11221101222011 is 11022210112211.

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 11221101222011 - 2² = 11221101222007 is a prime.

It is a super-2 number, since 2×11221101222011² (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 (11221101222031) 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, 5987779865 + ... + 5987781738.

It is an arithmetic number, because the mean of its divisors is an integer number (2808269196138).

Almost surely, 2^{11221101222011} is an apocalyptic number.

11221101222011 is a deficient number, since it is larger than the sum of its proper divisors (11975562541).

11221101222011 is an equidigital number, since it uses as much as digits as its factorization.

11221101222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11975562540.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11221101222011 its reverse (11022210112211), we get a palindrome (22243311334222).

The spelling of 11221101222011 in words is "eleven trillion, two hundred twenty-one billion, one hundred one million, two hundred twenty-two thousand, eleven".