11010002221 has 4 divisors (see below), whose sum is σ = 11389657500. Its totient is φ = 10630346944.

The previous prime is 11010002183. The next prime is 11010002233. The reversal of 11010002221 is 12220001011.

11010002221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12220001011 = 31 ⋅394193581.

It can be written as a sum of positive squares in 2 ways, for example, as 2903700996 + 8106301225 = 53886^2 + 90035^2 .

It is a cyclic number.

It is not a de Polignac number, because 11010002221 - 2¹⁷ = 11009871149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11010002198 and 11010002207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11010002291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189827596 + ... + 189827653.

It is an arithmetic number, because the mean of its divisors is an integer number (2847414375).

Almost surely, 2^11010002221 is an apocalyptic number.

It is an amenable number.

11010002221 is a deficient number, since it is larger than the sum of its proper divisors (379655279).

11010002221 is an equidigital number, since it uses as much as digits as its factorization.

11010002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379655278.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11010002221 its reverse (12220001011), we get a palindrome (23230003232).

The spelling of 11010002221 in words is "eleven billion, ten million, two thousand, two hundred twenty-one".