11221220220011 has 8 divisors (see below), whose sum is σ = 11223740940720. Its totient is φ = 11218699690848.

The previous prime is 11221220219953. The next prime is 11221220220029. The reversal of 11221220220011 is 11002202212211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11221220220011 - 2¹⁸ = 11221219957867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11221220220311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228807185 + ... + 228856221.

It is an arithmetic number, because the mean of its divisors is an integer number (1402967617590).

Almost surely, 2^{11221220220011} is an apocalyptic number.

11221220220011 is a deficient number, since it is larger than the sum of its proper divisors (2520720709).

11221220220011 is an equidigital number, since it uses as much as digits as its factorization.

11221220220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95773.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11221220220011 its reverse (11002202212211), we get a palindrome (22223422432222).

The spelling of 11221220220011 in words is "eleven trillion, two hundred twenty-one billion, two hundred twenty million, two hundred twenty thousand, eleven".