12001620242 has 8 divisors (see below), whose sum is σ = 18003216396. Its totient is φ = 6000548112.

The previous prime is 12001620233. The next prime is 12001620283. The reversal of 12001620242 is 24202610021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11605968361 + 395651881 = 107731^2 + 19891^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67613 + ... + 169040.

Almost surely, 2^12001620242 is an apocalyptic number.

12001620242 is a deficient number, since it is larger than the sum of its proper divisors (6001596154).

12001620242 is a wasteful number, since it uses less digits than its factorization.

12001620242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262012.

The product of its (nonzero) digits is 384, while the sum is 20.

The spelling of 12001620242 in words is "twelve billion, one million, six hundred twenty thousand, two hundred forty-two".