535322212033221 has 40 divisors (see below), whose sum is σ = 807671128332024. Its totient is φ = 353315330524800.

The previous prime is 535322212033207. The next prime is 535322212033223. The reversal of 535322212033221 is 122330212223535.

535322212033221 is a `hidden beast` number, since 5 + 3 + 5 + 3 + 2 + 221 + 203 + 3 + 221 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 275745453192225 + 259576758840996 = 16605585^2 + 16111386^2 .

It is not a de Polignac number, because 535322212033221 - 2¹⁰ = 535322212032197 is a prime.

It is a super-2 number, since 2×535322212033221² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (535322212033223) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 85638451 + ... + 91676543.

Almost surely, 2^{535322212033221} is an apocalyptic number.

It is an amenable number.

535322212033221 is a deficient number, since it is larger than the sum of its proper divisors (272348916298803).

535322212033221 is a wasteful number, since it uses less digits than its factorization.

535322212033221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6049043 (or 6049034 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 535322212033221 its reverse (122330212223535), we get a palindrome (657652424256756).

The spelling of 535322212033221 in words is "five hundred thirty-five trillion, three hundred twenty-two billion, two hundred twelve million, thirty-three thousand, two hundred twenty-one".