11141535221 has 4 divisors (see below), whose sum is σ = 11266721100. Its totient is φ = 11016349344.

The previous prime is 11141535217. The next prime is 11141535263. The reversal of 11141535221 is 12253514111.

11141535221 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.

It can be written as a sum of positive squares in 2 ways, for example, as 3307515121 + 7834020100 = 57511^2 + 88510^2 .

It is a cyclic number.

It is not a de Polignac number, because 11141535221 - 2² = 11141535217 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 (11141535281) 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, 62592806 + ... + 62592983.

It is an arithmetic number, because the mean of its divisors is an integer number (2816680275).

Almost surely, 2^11141535221 is an apocalyptic number.

It is an amenable number.

11141535221 is a deficient number, since it is larger than the sum of its proper divisors (125185879).

11141535221 is an equidigital number, since it uses as much as digits as its factorization.

11141535221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125185878.

The product of its digits is 1200, while the sum is 26.

The spelling of 11141535221 in words is "eleven billion, one hundred forty-one million, five hundred thirty-five thousand, two hundred twenty-one".