21333222032 has 10 divisors (see below), whose sum is σ = 41333117718. Its totient is φ = 10666611008.

The previous prime is 21333222017. The next prime is 21333222041. The reversal of 21333222032 is 23022233312.

It can be written as a sum of positive squares in only one way, i.e., 17661346816 + 3671875216 = 132896^2 + 60596^2 .

It is a super-2 number, since 2×21333222032² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21333221989 and 21333222007.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 666663173 + ... + 666663204.

Almost surely, 2^21333222032 is an apocalyptic number.

It is an amenable number.

21333222032 is a deficient number, since it is larger than the sum of its proper divisors (19999895686).

21333222032 is a wasteful number, since it uses less digits than its factorization.

21333222032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333326385 (or 1333326379 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 21333222032 its reverse (23022233312), we get a palindrome (44355455344).

The spelling of 21333222032 in words is "twenty-one billion, three hundred thirty-three million, two hundred twenty-two thousand, thirty-two".