12021033401242 has 8 divisors (see below), whose sum is σ = 18055244650932. Its totient is φ = 6002618517600.

The previous prime is 12021033401233. The next prime is 12021033401249. The reversal of 12021033401242 is 24210433012021.

It can be written as a sum of positive squares in 2 ways, for example, as 11967801221401 + 53232179841 = 3459451^2 + 230721^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12021033401249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3949089609 + ... + 3949092652.

Almost surely, 2^{12021033401242} is an apocalyptic number.

12021033401242 is a deficient number, since it is larger than the sum of its proper divisors (6034211249690).

12021033401242 is an equidigital number, since it uses as much as digits as its factorization.

12021033401242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7898183024.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 12021033401242 its reverse (24210433012021), we get a palindrome (36231466413263).

The spelling of 12021033401242 in words is "twelve trillion, twenty-one billion, thirty-three million, four hundred one thousand, two hundred forty-two".