33101213312 has 32 divisors (see below), whose sum is σ = 66872628000. Its totient is φ = 16317495040.

The previous prime is 33101213311. The next prime is 33101213333. The reversal of 33101213312 is 21331210133.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (33101213311) 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, 1812062 + ... + 1830237.

It is an arithmetic number, because the mean of its divisors is an integer number (2089769625).

Almost surely, 2^33101213312 is an apocalyptic number.

33101213312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

33101213312 is an abundant number, since it is smaller than the sum of its proper divisors (33771414688).

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

33101213312 is an equidigital number, since it uses as much as digits as its factorization.

33101213312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3642384 (or 3642372 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 33101213312 its reverse (21331210133), we get a palindrome (54432423445).

The spelling of 33101213312 in words is "thirty-three billion, one hundred one million, two hundred thirteen thousand, three hundred twelve".