2216121352533 has 24 divisors (see below), whose sum is σ = 3566369379456. Its totient is φ = 1314527169600.

The previous prime is 2216121352477. The next prime is 2216121352559. The reversal of 2216121352533 is 3352531216122.

2216121352533 is a `hidden beast` number, since 2 + 2 + 1 + 6 + 121 + 3 + 525 + 3 + 3 = 666.

It is not a de Polignac number, because 2216121352533 - 2¹⁶ = 2216121286997 is a prime.

It is a super-2 number, since 2×2216121352533² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216121352433) 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 23 ways as a sum of consecutive naturals, for example, 238134328 + ... + 238143633.

It is an arithmetic number, because the mean of its divisors is an integer number (148598724144).

Almost surely, 2^{2216121352533} is an apocalyptic number.

It is an amenable number.

2216121352533 is a deficient number, since it is larger than the sum of its proper divisors (1350248026923).

2216121352533 is a wasteful number, since it uses less digits than its factorization.

2216121352533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476278025 (or 476278022 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

Adding to 2216121352533 its reverse (3352531216122), we get a palindrome (5568652568655).

The spelling of 2216121352533 in words is "two trillion, two hundred sixteen billion, one hundred twenty-one million, three hundred fifty-two thousand, five hundred thirty-three".