11033421120221 has 8 divisors (see below), whose sum is σ = 11413988965080. Its totient is φ = 10652860278592.

The previous prime is 11033421120217. The next prime is 11033421120233. The reversal of 11033421120221 is 12202112433011.

It can be written as a sum of positive squares in 4 ways, for example, as 1609663125625 + 9423757994596 = 1268725^2 + 3069814^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11033421120221 - 2² = 11033421120217 is a prime.

It is a super-2 number, since 2×11033421120221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11033421120121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1560671 + ... + 4950003.

It is an arithmetic number, because the mean of its divisors is an integer number (1426748620635).

Almost surely, 2^{11033421120221} is an apocalyptic number.

It is an amenable number.

11033421120221 is a deficient number, since it is larger than the sum of its proper divisors (380567844859).

11033421120221 is a wasteful number, since it uses less digits than its factorization.

11033421120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3501615.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 11033421120221 its reverse (12202112433011), we get a palindrome (23235533553232).

The spelling of 11033421120221 in words is "eleven trillion, thirty-three billion, four hundred twenty-one million, one hundred twenty thousand, two hundred twenty-one".