11011220000221 has 8 divisors (see below), whose sum is σ = 12584303874560. Its totient is φ = 9438149237328.

The previous prime is 11011220000167. The next prime is 11011220000243. The reversal of 11011220000221 is 12200002211011.

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

It is not a de Polignac number, because 11011220000221 - 2¹¹ = 11011219998173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011220000021) 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, 1407066 + ... + 4899211.

It is an arithmetic number, because the mean of its divisors is an integer number (1573037984320).

Almost surely, 2^{11011220000221} is an apocalyptic number.

It is an amenable number.

11011220000221 is a deficient number, since it is larger than the sum of its proper divisors (1573083874339).

11011220000221 is an equidigital number, since it uses as much as digits as its factorization.

11011220000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6555723.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11011220000221 its reverse (12200002211011), we get a palindrome (23211222211232).

The spelling of 11011220000221 in words is "eleven trillion, eleven billion, two hundred twenty million, two hundred twenty-one", and thus it is an aban number.