12012421042 has 8 divisors (see below), whose sum is σ = 18023930496. Its totient is φ = 6004444212.

The previous prime is 12012421037. The next prime is 12012421139. The reversal of 12012421042 is 24012421021.

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, 874638 + ... + 888265.

It is an arithmetic number, because the mean of its divisors is an integer number (2252991312).

Almost surely, 2^12012421042 is an apocalyptic number.

12012421042 is a deficient number, since it is larger than the sum of its proper divisors (6011509454).

12012421042 is a wasteful number, since it uses less digits than its factorization.

12012421042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766312.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12012421042 its reverse (24012421021), we get a palindrome (36024842063).

The spelling of 12012421042 in words is "twelve billion, twelve million, four hundred twenty-one thousand, forty-two".