33312320012 has 24 divisors (see below), whose sum is σ = 61731747504. Its totient is φ = 15674867712.

The previous prime is 33312320009. The next prime is 33312320017. The reversal of 33312320012 is 21002321333.

It is a super-2 number, since 2×33312320012² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33312320017) 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, 1016588 + ... + 1048844.

It is an arithmetic number, because the mean of its divisors is an integer number (2572156146).

Almost surely, 2^33312320012 is an apocalyptic number.

It is an amenable number.

33312320012 is a deficient number, since it is larger than the sum of its proper divisors (28419427492).

33312320012 is a wasteful number, since it uses less digits than its factorization.

33312320012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47465 (or 47463 counting only the distinct ones).

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

Adding to 33312320012 its reverse (21002321333), we get a palindrome (54314641345).

The spelling of 33312320012 in words is "thirty-three billion, three hundred twelve million, three hundred twenty thousand, twelve".