21304422333 has 8 divisors (see below), whose sum is σ = 31562107200. Its totient is φ = 14202948204.

The previous prime is 21304422329. The next prime is 21304422379. The reversal of 21304422333 is 33322440312.

21304422333 is a `hidden beast` number, since 2 + 1 + 304 + 4 + 22 + 333 = 666.

It is not a de Polignac number, because 21304422333 - 2² = 21304422329 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 789052679 = 21304422333 / (2 + 1 + 3 + 0 + 4 + 4 + 2 + 2 + 3 + 3 + 3).

It is a junction number, because it is equal to n+sod(n) for n = 21304422297 and 21304422306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21304422383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394526313 + ... + 394526366.

It is an arithmetic number, because the mean of its divisors is an integer number (3945263400).

Almost surely, 2^21304422333 is an apocalyptic number.

It is an amenable number.

21304422333 is a deficient number, since it is larger than the sum of its proper divisors (10257684867).

21304422333 is an equidigital number, since it uses as much as digits as its factorization.

21304422333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789052688 (or 789052682 counting only the distinct ones).

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

Adding to 21304422333 its reverse (33322440312), we get a palindrome (54626862645).

The spelling of 21304422333 in words is "twenty-one billion, three hundred four million, four hundred twenty-two thousand, three hundred thirty-three".