21222030124563 has 16 divisors (see below), whose sum is σ = 28992955936896. Its totient is φ = 13799723351360.

The previous prime is 21222030124517. The next prime is 21222030124577. The reversal of 21222030124563 is 36542103022212.

It is a cyclic number.

It is not a de Polignac number, because 21222030124563 - 2⁸ = 21222030124307 is a prime.

It is a super-2 number, since 2×21222030124563² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21222030124963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19615245 + ... + 20668862.

It is an arithmetic number, because the mean of its divisors is an integer number (1812059746056).

Almost surely, 2^{21222030124563} is an apocalyptic number.

21222030124563 is a deficient number, since it is larger than the sum of its proper divisors (7770925812333).

21222030124563 is a wasteful number, since it uses less digits than its factorization.

21222030124563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40288434.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 21222030124563 its reverse (36542103022212), we get a palindrome (57764133146775).

The spelling of 21222030124563 in words is "twenty-one trillion, two hundred twenty-two billion, thirty million, one hundred twenty-four thousand, five hundred sixty-three".