1204211211242 has 16 divisors (see below), whose sum is σ = 1945288999752. Its totient is φ = 555782722560.

The previous prime is 1204211211223. The next prime is 1204211211257. The reversal of 1204211211242 is 2421121124021.

It can be written as a sum of positive squares in 4 ways, for example, as 1155347666641 + 48863544601 = 1074871^2 + 221051^2 .

It is an unprimeable number.

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, 2182778 + ... + 2678234.

Almost surely, 2^{1204211211242} is an apocalyptic number.

1204211211242 is a deficient number, since it is larger than the sum of its proper divisors (741077788510).

1204211211242 is a wasteful number, since it uses less digits than its factorization.

1204211211242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588953.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 1204211211242 its reverse (2421121124021), we get a palindrome (3625332335263).

The spelling of 1204211211242 in words is "one trillion, two hundred four billion, two hundred eleven million, two hundred eleven thousand, two hundred forty-two".