1223443404242 has 16 divisors (see below), whose sum is σ = 1932081681600. Its totient is φ = 579427141680.

The previous prime is 1223443404221. The next prime is 1223443404251. The reversal of 1223443404242 is 2424043443221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2514809 + ... + 2961612.

It is an arithmetic number, because the mean of its divisors is an integer number (120755105100).

Almost surely, 2^{1223443404242} is an apocalyptic number.

1223443404242 is a deficient number, since it is larger than the sum of its proper divisors (708638277358).

1223443404242 is a wasteful number, since it uses less digits than its factorization.

1223443404242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5482321.

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 1223443404242 its reverse (2424043443221), we get a palindrome (3647486847463).

The spelling of 1223443404242 in words is "one trillion, two hundred twenty-three billion, four hundred forty-three million, four hundred four thousand, two hundred forty-two".