1212112344242 has 8 divisors (see below), whose sum is σ = 1818180329196. Its totient is φ = 606052234512.

The previous prime is 1212112344221. The next prime is 1212112344251. The reversal of 1212112344242 is 2424432112121.

It can be written as a sum of positive squares in 2 ways, for example, as 868588584361 + 343523759881 = 931981^2 + 586109^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1567673 + ... + 2209484.

Almost surely, 2^{1212112344242} is an apocalyptic number.

1212112344242 is a deficient number, since it is larger than the sum of its proper divisors (606067984954).

1212112344242 is a wasteful number, since it uses less digits than its factorization.

1212112344242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3937612.

The product of its digits is 6144, while the sum is 29.

Adding to 1212112344242 its reverse (2424432112121), we get a palindrome (3636544456363).

The spelling of 1212112344242 in words is "one trillion, two hundred twelve billion, one hundred twelve million, three hundred forty-four thousand, two hundred forty-two".