12122012031999 has 32 divisors (see below), whose sum is σ = 16545147899904. Its totient is φ = 7890918604800.

The previous prime is 12122012031889. The next prime is 12122012032033. The reversal of 12122012031999 is 99913021022121.

It is not a de Polignac number, because 12122012031999 - 2¹⁷ = 12122011900927 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12122012031999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122012031799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 473484799 + ... + 473510399.

It is an arithmetic number, because the mean of its divisors is an integer number (517035871872).

Almost surely, 2^{12122012031999} is an apocalyptic number.

12122012031999 is a deficient number, since it is larger than the sum of its proper divisors (4423135867905).

12122012031999 is a wasteful number, since it uses less digits than its factorization.

12122012031999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33367.

The product of its (nonzero) digits is 34992, while the sum is 42.

The spelling of 12122012031999 in words is "twelve trillion, one hundred twenty-two billion, twelve million, thirty-one thousand, nine hundred ninety-nine".