1221134114342 has 8 divisors (see below), whose sum is σ = 1837136487576. Its totient is φ = 608755285152.

The previous prime is 1221134114341. The next prime is 1221134114407. The reversal of 1221134114342 is 2434114311221.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221134114341) 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 3 ways as a sum of consecutive naturals, for example, 905885168 + ... + 905886515.

It is an arithmetic number, because the mean of its divisors is an integer number (229642060947).

Almost surely, 2^{1221134114342} is an apocalyptic number.

1221134114342 is a deficient number, since it is larger than the sum of its proper divisors (616002373234).

1221134114342 is a wasteful number, since it uses less digits than its factorization.

1221134114342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811772022.

The product of its digits is 4608, while the sum is 29.

Adding to 1221134114342 its reverse (2434114311221), we get a palindrome (3655248425563).

The spelling of 1221134114342 in words is "one trillion, two hundred twenty-one billion, one hundred thirty-four million, one hundred fourteen thousand, three hundred forty-two".