11020221000221 has 4 divisors (see below), whose sum is σ = 11020633321500. Its totient is φ = 11019808678944.

The previous prime is 11020221000167. The next prime is 11020221000263. The reversal of 11020221000221 is 12200012202011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7616247660025 + 3403973340196 = 2759755^2 + 1844986^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11020221000221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11020221000196 and 11020221000205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020221000121) 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, 206120546 + ... + 206174003.

It is an arithmetic number, because the mean of its divisors is an integer number (2755158330375).

Almost surely, 2^{11020221000221} is an apocalyptic number.

It is an amenable number.

11020221000221 is a deficient number, since it is larger than the sum of its proper divisors (412321279).

11020221000221 is an equidigital number, since it uses as much as digits as its factorization.

11020221000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412321278.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11020221000221 its reverse (12200012202011), we get a palindrome (23220233202232).

The spelling of 11020221000221 in words is "eleven trillion, twenty billion, two hundred twenty-one million, two hundred twenty-one", and thus it is an aban number.