2004220121242 has 16 divisors (see below), whose sum is σ = 3048509060712. Its totient is φ = 988059409920.

The previous prime is 2004220121209. The next prime is 2004220121269. The reversal of 2004220121242 is 2421210224002.

It can be written as a sum of positive squares in 4 ways, for example, as 1918393973721 + 85826147521 = 1385061^2 + 292961^2 .

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 7 ways as a sum of consecutive naturals, for example, 1795423 + ... + 2689234.

Almost surely, 2^{2004220121242} is an apocalyptic number.

2004220121242 is a deficient number, since it is larger than the sum of its proper divisors (1044288939470).

2004220121242 is a wasteful number, since it uses less digits than its factorization.

2004220121242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4487793.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 2004220121242 its reverse (2421210224002), we get a palindrome (4425430345244).

The spelling of 2004220121242 in words is "two trillion, four billion, two hundred twenty million, one hundred twenty-one thousand, two hundred forty-two".