10216635206221 has 8 divisors (see below), whose sum is σ = 10222708025600. Its totient is φ = 10210562928720.

The previous prime is 10216635206209. The next prime is 10216635206243. The reversal of 10216635206221 is 12260253661201.

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 10216635206221 - 2³³ = 10208045271629 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 (10216635206201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41328775 + ... + 41575243.

It is an arithmetic number, because the mean of its divisors is an integer number (1277838503200).

Almost surely, 2^{10216635206221} is an apocalyptic number.

It is an amenable number.

10216635206221 is a deficient number, since it is larger than the sum of its proper divisors (6072819379).

10216635206221 is a wasteful number, since it uses less digits than its factorization.

10216635206221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270939.

The product of its (nonzero) digits is 51840, while the sum is 37.

Adding to 10216635206221 its reverse (12260253661201), we get a palindrome (22476888867422).

The spelling of 10216635206221 in words is "ten trillion, two hundred sixteen billion, six hundred thirty-five million, two hundred six thousand, two hundred twenty-one".