12122001992 has 16 divisors (see below), whose sum is σ = 23212344960. Its totient is φ = 5932043344.

The previous prime is 12122001979. The next prime is 12122002019. The reversal of 12122001992 is 29910022121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16119308 + ... + 16120059.

It is an arithmetic number, because the mean of its divisors is an integer number (1450771560).

Almost surely, 2^12122001992 is an apocalyptic number.

It is an amenable number.

12122001992 is a deficient number, since it is larger than the sum of its proper divisors (11090342968).

12122001992 is a wasteful number, since it uses less digits than its factorization.

12122001992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32239420 (or 32239416 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 12122001992 in words is "twelve billion, one hundred twenty-two million, one thousand, nine hundred ninety-two".