11021301002221 has 4 divisors (see below), whose sum is σ = 11021571776700. Its totient is φ = 11021030227744.

The previous prime is 11021301002191. The next prime is 11021301002233. The reversal of 11021301002221 is 12220010312011.

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 4169706824196 + 6851594178025 = 2041986^2 + 2617555^2 .

It is a cyclic number.

It is not a de Polignac number, because 11021301002221 - 2⁹ = 11021301001709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11021301002195 and 11021301002204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021301002281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135326176 + ... + 135407593.

It is an arithmetic number, because the mean of its divisors is an integer number (2755392944175).

Almost surely, 2^{11021301002221} is an apocalyptic number.

It is an amenable number.

11021301002221 is a deficient number, since it is larger than the sum of its proper divisors (270774479).

11021301002221 is an equidigital number, since it uses as much as digits as its factorization.

11021301002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270774478.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11021301002221 its reverse (12220010312011), we get a palindrome (23241311314232).

The spelling of 11021301002221 in words is "eleven trillion, twenty-one billion, three hundred one million, two thousand, two hundred twenty-one".