12001001978292 has 48 divisors (see below), whose sum is σ = 29500688884800. Its totient is φ = 3786634483200.

The previous prime is 12001001978291. The next prime is 12001001978293. The reversal of 12001001978292 is 29287910010021.

It is an interprime number because it is at equal distance from previous prime (12001001978291) and next prime (12001001978293).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001001978291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21639567 + ... + 22187222.

It is an arithmetic number, because the mean of its divisors is an integer number (614597685100).

Almost surely, 2^{12001001978292} is an apocalyptic number.

12001001978292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12001001978292 is an abundant number, since it is smaller than the sum of its proper divisors (17499686906508).

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

12001001978292 is a wasteful number, since it uses less digits than its factorization.

12001001978292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43828016 (or 43828014 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 42.

The spelling of 12001001978292 in words is "twelve trillion, one billion, one million, nine hundred seventy-eight thousand, two hundred ninety-two".