11020303221 has 16 divisors (see below), whose sum is σ = 15885124800. Its totient is φ = 6772076928.

The previous prime is 11020303199. The next prime is 11020303271. The reversal of 11020303221 is 12230302011.

It is not a de Polignac number, because 11020303221 - 2¹³ = 11020295029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11020303221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020303271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2610576 + ... + 2614793.

It is an arithmetic number, because the mean of its divisors is an integer number (992820300).

Almost surely, 2^11020303221 is an apocalyptic number.

It is an amenable number.

11020303221 is a deficient number, since it is larger than the sum of its proper divisors (4864821579).

11020303221 is a wasteful number, since it uses less digits than its factorization.

11020303221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5225428.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 11020303221 its reverse (12230302011), we get a palindrome (23250605232).

The spelling of 11020303221 in words is "eleven billion, twenty million, three hundred three thousand, two hundred twenty-one".