12012442442 has 32 divisors (see below), whose sum is σ = 24192895104. Its totient is φ = 4320158400.

The previous prime is 12012442399. The next prime is 12012442457. The reversal of 12012442442 is 24424421021.

It is a happy number.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2998109 + ... + 3002112.

It is an arithmetic number, because the mean of its divisors is an integer number (756027972).

Almost surely, 2^12012442442 is an apocalyptic number.

12012442442 is an abundant number, since it is smaller than the sum of its proper divisors (12180452662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12012442442 is a wasteful number, since it uses less digits than its factorization.

12012442442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6000254.

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 12012442442 its reverse (24424421021), we get a palindrome (36436863463).

It can be divided in two parts, 12012 and 442442, that added together give a palindrome (454454).

The spelling of 12012442442 in words is "twelve billion, twelve million, four hundred forty-two thousand, four hundred forty-two".