1123222221342 has 192 divisors, whose sum is σ = 2971609804800. Its totient is φ = 303077998080.

The previous prime is 1123222221337. The next prime is 1123222221367. The reversal of 1123222221342 is 2431222223211.

1123222221342 is a `hidden beast` number, since 112 + 322 + 2 + 221 + 3 + 4 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2992834 + ... + 3347162.

It is an arithmetic number, because the mean of its divisors is an integer number (15477134400).

Almost surely, 2^{1123222221342} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123222221342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1485804902400).

1123222221342 is an abundant number, since it is smaller than the sum of its proper divisors (1848387583458).

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

1123222221342 is a wasteful number, since it uses less digits than its factorization.

1123222221342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354423 (or 354420 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 1123222221342 its reverse (2431222223211), we get a palindrome (3554444444553).

The spelling of 1123222221342 in words is "one trillion, one hundred twenty-three billion, two hundred twenty-two million, two hundred twenty-one thousand, three hundred forty-two".