11103301202221 has 4 divisors (see below), whose sum is σ = 11486173657500. Its totient is φ = 10720428746944.

The previous prime is 11103301202183. The next prime is 11103301202269. The reversal of 11103301202221 is 12220210330111.

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 8370432648900 + 2732868553321 = 2893170^2 + 1653139^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11103301202221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11103301202321) 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 3 ways as a sum of consecutive naturals, for example, 191436227596 + ... + 191436227653.

It is an arithmetic number, because the mean of its divisors is an integer number (2871543414375).

Almost surely, 2^{11103301202221} is an apocalyptic number.

It is an amenable number.

11103301202221 is a deficient number, since it is larger than the sum of its proper divisors (382872455279).

11103301202221 is an equidigital number, since it uses as much as digits as its factorization.

11103301202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382872455278.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 11103301202221 its reverse (12220210330111), we get a palindrome (23323511532332).

The spelling of 11103301202221 in words is "eleven trillion, one hundred three billion, three hundred one million, two hundred two thousand, two hundred twenty-one".