33023531212 has 24 divisors (see below), whose sum is σ = 67166507520. Its totient is φ = 13913060880.

The previous prime is 33023531119. The next prime is 33023531251. The reversal of 33023531212 is 21213532033.

It is a super-2 number, since 2×33023531212² (a number of 22 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 9993364 + ... + 9996667.

It is an arithmetic number, because the mean of its divisors is an integer number (2798604480).

Almost surely, 2^33023531212 is an apocalyptic number.

It is an amenable number.

33023531212 is an abundant number, since it is smaller than the sum of its proper divisors (34142976308).

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

33023531212 is a wasteful number, since it uses less digits than its factorization.

33023531212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19990101 (or 19990099 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

The spelling of 33023531212 in words is "thirty-three billion, twenty-three million, five hundred thirty-one thousand, two hundred twelve".