10641355221 has 64 divisors (see below), whose sum is σ = 16798924800. Its totient is φ = 5867237376.

The previous prime is 10641355183. The next prime is 10641355223. The reversal of 10641355221 is 12255314601.

10641355221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10641355221 - 2⁷ = 10641355093 is a prime.

It is a super-3 number, since 3×10641355221³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10641355223) 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 63 ways as a sum of consecutive naturals, for example, 14321776 + ... + 14322518.

It is an arithmetic number, because the mean of its divisors is an integer number (262483200).

Almost surely, 2^10641355221 is an apocalyptic number.

It is an amenable number.

10641355221 is a deficient number, since it is larger than the sum of its proper divisors (6157569579).

10641355221 is an equidigital number, since it uses as much as digits as its factorization.

10641355221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 10641355221 its reverse (12255314601), we get a palindrome (22896669822).

The spelling of 10641355221 in words is "ten billion, six hundred forty-one million, three hundred fifty-five thousand, two hundred twenty-one".