21330012332 has 24 divisors (see below), whose sum is σ = 39509237040. Its totient is φ = 10047862080.

The previous prime is 21330012239. The next prime is 21330012367. The reversal of 21330012332 is 23321003312.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 761543 + ... + 789054.

It is an arithmetic number, because the mean of its divisors is an integer number (1646218210).

Almost surely, 2^21330012332 is an apocalyptic number.

It is an amenable number.

21330012332 is a deficient number, since it is larger than the sum of its proper divisors (18179224708).

21330012332 is a wasteful number, since it uses less digits than its factorization.

21330012332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550801 (or 1550799 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21330012332 its reverse (23321003312), we get a palindrome (44651015644).

The spelling of 21330012332 in words is "twenty-one billion, three hundred thirty million, twelve thousand, three hundred thirty-two".