21333433312 has 24 divisors (see below), whose sum is σ = 42416046792.
Its totient is φ = 10561104000.
The previous prime is 21333433307. The next prime is 21333433313.
21333433312 is nontrivially palindromic in base 10.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (21333433313) 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 3 ways as a sum of consecutive naturals, for example, 3297114 + ... + 3303577.
It is an arithmetic number, because the mean of its divisors is an integer number (1767335283).
Almost surely, 221333433312 is an apocalyptic number.
It is an amenable number.
21333433312 is a deficient number, since it is larger than the sum of its proper divisors (21082613480).
21333433312 is a wasteful number, since it uses less digits than its factorization.
21333433312 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6600802 (or 6600794 counting only the distinct ones).
The product of its digits is 11664, while the sum is 28.
The spelling of 21333433312 in words is "twenty-one billion, three hundred thirty-three million, four hundred thirty-three thousand, three hundred twelve".