12021209974 has 8 divisors (see below), whose sum is σ = 18034574688. Its totient is φ = 6009685080.

The previous prime is 12021209971. The next prime is 12021210011. The reversal of 12021209974 is 47990212021.

12021209974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021209971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443502 + ... + 469825.

It is an arithmetic number, because the mean of its divisors is an integer number (2254321836).

Almost surely, 2^12021209974 is an apocalyptic number.

12021209974 is a deficient number, since it is larger than the sum of its proper divisors (6013364714).

12021209974 is an equidigital number, since it uses as much as digits as its factorization.

12021209974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919910.

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 12021209974 in words is "twelve billion, twenty-one million, two hundred nine thousand, nine hundred seventy-four".