33312000012 has 24 divisors (see below), whose sum is σ = 77732360496. Its totient is φ = 11103377088.

The previous prime is 33311999993. The next prime is 33312000013. The reversal of 33312000012 is 21000021333.

It is a super-2 number, since 2×33312000012² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33311999955 and 33312000000.

It is not an unprimeable number, because it can be changed into a prime (33312000013) 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, 178798 + ... + 313994.

It is an arithmetic number, because the mean of its divisors is an integer number (3238848354).

Almost surely, 2^33312000012 is an apocalyptic number.

It is an amenable number.

33312000012 is an abundant number, since it is smaller than the sum of its proper divisors (44420360484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33312000012 is a wasteful number, since it uses less digits than its factorization.

33312000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155737 (or 155735 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 33312000012 its reverse (21000021333), we get a palindrome (54312021345).

The spelling of 33312000012 in words is "thirty-three billion, three hundred twelve million, twelve", and thus it is an aban number.