33031301212 has 36 divisors (see below), whose sum is σ = 72414781320. Its totient is φ = 13067326944.

The previous prime is 33031301197. The next prime is 33031301239. The reversal of 33031301212 is 21210313033.

It is a self number, because there is not a number n which added to its sum of digits gives 33031301212.

It is a congruent number.

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 in 11 ways as a sum of consecutive naturals, for example, 6479262 + ... + 6484357.

Almost surely, 2^33031301212 is an apocalyptic number.

It is an amenable number.

33031301212 is an abundant number, since it is smaller than the sum of its proper divisors (39383480108).

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

33031301212 is a wasteful number, since it uses less digits than its factorization.

33031301212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12963650 (or 12963641 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 33031301212 its reverse (21210313033), we get a palindrome (54241614245).

The spelling of 33031301212 in words is "thirty-three billion, thirty-one million, three hundred one thousand, two hundred twelve".