1204220321012 has 6 divisors (see below), whose sum is σ = 2107385561778. Its totient is φ = 602110160504.

The previous prime is 1204220320991. The next prime is 1204220321021. The reversal of 1204220321012 is 2101230224021.

It can be written as a sum of positive squares in only one way, i.e., 1103600674576 + 100619646436 = 1050524^2 + 317206^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150527540123 + ... + 150527540130.

It is an arithmetic number, because the mean of its divisors is an integer number (351230926963).

Almost surely, 2^{1204220321012} is an apocalyptic number.

It is an amenable number.

1204220321012 is a deficient number, since it is larger than the sum of its proper divisors (903165240766).

1204220321012 is a wasteful number, since it uses less digits than its factorization.

1204220321012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301055080257 (or 301055080255 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1204220321012 its reverse (2101230224021), we get a palindrome (3305450545033).

The spelling of 1204220321012 in words is "one trillion, two hundred four billion, two hundred twenty million, three hundred twenty-one thousand, twelve".