21222433323 has 256 divisors, whose sum is σ = 41797324800. Its totient is φ = 10346434560.

The previous prime is 21222433291. The next prime is 21222433333. The reversal of 21222433323 is 32333422212.

21222433323 = 922³ + 923³ + ... + 947³.

21222433323 is a `hidden beast` number, since 2 + 1 + 222 + 433 + 3 + 2 + 3 = 666.

It is not a de Polignac number, because 21222433323 - 2⁵ = 21222433291 is a prime.

It is a super-2 number, since 2×21222433323² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (21222433333) 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 255 ways as a sum of consecutive naturals, for example, 238454263 + ... + 238454351.

It is an arithmetic number, because the mean of its divisors is an integer number (163270800).

Almost surely, 2^21222433323 is an apocalyptic number.

21222433323 is a deficient number, since it is larger than the sum of its proper divisors (20574891477).

21222433323 is a wasteful number, since it uses less digits than its factorization.

21222433323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 253 counting only the distinct ones).

The product of its digits is 10368, while the sum is 27.

Adding to 21222433323 its reverse (32333422212), we get a palindrome (53555855535).

The spelling of 21222433323 in words is "twenty-one billion, two hundred twenty-two million, four hundred thirty-three thousand, three hundred twenty-three".