11221011220011 has 16 divisors (see below), whose sum is σ = 15152828275200. Its totient is φ = 7384960353888.

The previous prime is 11221011219997. The next prime is 11221011220039. The reversal of 11221011220011 is 11002211012211.

It is a happy number.

It is not a de Polignac number, because 11221011220011 - 2¹³ = 11221011211819 is a prime.

It is a super-2 number, since 2×11221011220011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11221011220051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1555941 + ... + 4986278.

It is an arithmetic number, because the mean of its divisors is an integer number (947051767200).

Almost surely, 2^{11221011220011} is an apocalyptic number.

11221011220011 is a deficient number, since it is larger than the sum of its proper divisors (3931817055189).

11221011220011 is an equidigital number, since it uses as much as digits as its factorization.

11221011220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6549538.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11221011220011 its reverse (11002211012211), we get a palindrome (22223222232222).

The spelling of 11221011220011 in words is "eleven trillion, two hundred twenty-one billion, eleven million, two hundred twenty thousand, eleven".