33140721012 has 24 divisors (see below), whose sum is σ = 88375256256. Its totient is φ = 9468777408.

The previous prime is 33140720989. The next prime is 33140721023. The reversal of 33140721012 is 21012704133.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197266113 + ... + 197266280.

It is an arithmetic number, because the mean of its divisors is an integer number (3682302344).

Almost surely, 2^33140721012 is an apocalyptic number.

It is an amenable number.

33140721012 is an abundant number, since it is smaller than the sum of its proper divisors (55234535244).

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

33140721012 is a wasteful number, since it uses less digits than its factorization.

33140721012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394532407 (or 394532405 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The spelling of 33140721012 in words is "thirty-three billion, one hundred forty million, seven hundred twenty-one thousand, twelve".