12011999982 has 8 divisors (see below), whose sum is σ = 24023999976. Its totient is φ = 4003999992.

The previous prime is 12011999963. The next prime is 12011999983. The reversal of 12011999982 is 28999911021.

It is a sphenic number, since it is the product of 3 distinct primes.

12011999982 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011999983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000999993 + ... + 1001000004.

It is an arithmetic number, because the mean of its divisors is an integer number (3002999997).

Almost surely, 2^12011999982 is an apocalyptic number.

12011999982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12011999982 is a wasteful number, since it uses less digits than its factorization.

12011999982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002000002.

The product of its (nonzero) digits is 209952, while the sum is 51.

The spelling of 12011999982 in words is "twelve billion, eleven million, nine hundred ninety-nine thousand, nine hundred eighty-two".