11033301221 has 4 divisors (see below), whose sum is σ = 11045027244. Its totient is φ = 11021575200.

The previous prime is 11033301193. The next prime is 11033301229. The reversal of 11033301221 is 12210333011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12210333011 = 17 ⋅718254883.

It can be written as a sum of positive squares in 2 ways, for example, as 4437424996 + 6595876225 = 66614^2 + 81215^2 .

It is a cyclic number.

It is not a de Polignac number, because 11033301221 - 2²² = 11029106917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11033301221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11033301229) 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, 5861600 + ... + 5863481.

It is an arithmetic number, because the mean of its divisors is an integer number (2761256811).

Almost surely, 2^11033301221 is an apocalyptic number.

It is an amenable number.

11033301221 is a deficient number, since it is larger than the sum of its proper divisors (11726023).

11033301221 is an equidigital number, since it uses as much as digits as its factorization.

11033301221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11726022.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 11033301221 its reverse (12210333011), we get a palindrome (23243634232).

The spelling of 11033301221 in words is "eleven billion, thirty-three million, three hundred one thousand, two hundred twenty-one".