1344142212121 has 4 divisors (see below), whose sum is σ = 1346232636112. Its totient is φ = 1342051788132.

The previous prime is 1344142212071. The next prime is 1344142212157. The reversal of 1344142212121 is 1212122414431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1344142212121 - 2¹⁵ = 1344142179353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1344142212121.

It is not an unprimeable number, because it can be changed into a prime (1344142212191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1045211031 + ... + 1045212316.

It is an arithmetic number, because the mean of its divisors is an integer number (336558159028).

Almost surely, 2^{1344142212121} is an apocalyptic number.

It is an amenable number.

1344142212121 is a deficient number, since it is larger than the sum of its proper divisors (2090423991).

1344142212121 is an equidigital number, since it uses as much as digits as its factorization.

1344142212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090423990.

The product of its digits is 3072, while the sum is 28.

Adding to 1344142212121 its reverse (1212122414431), we get a palindrome (2556264626552).

The spelling of 1344142212121 in words is "one trillion, three hundred forty-four billion, one hundred forty-two million, two hundred twelve thousand, one hundred twenty-one".