1234212442121 has 8 divisors (see below), whose sum is σ = 1287912222144. Its totient is φ = 1180515859600.

The previous prime is 1234212442093. The next prime is 1234212442123. The reversal of 1234212442121 is 1212442124321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1234212442121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1234212442123) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6710 + ... + 1571136.

It is an arithmetic number, because the mean of its divisors is an integer number (160989027768).

Almost surely, 2^{1234212442121} is an apocalyptic number.

It is an amenable number.

1234212442121 is a deficient number, since it is larger than the sum of its proper divisors (53699780023).

1234212442121 is a wasteful number, since it uses less digits than its factorization.

1234212442121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598751.

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

Adding to 1234212442121 its reverse (1212442124321), we get a palindrome (2446654566442).

The spelling of 1234212442121 in words is "one trillion, two hundred thirty-four billion, two hundred twelve million, four hundred forty-two thousand, one hundred twenty-one".