1204200302021 has 2 divisors, whose sum is σ = 1204200302022. Its totient is φ = 1204200302020.

The previous prime is 1204200302017. The next prime is 1204200302051. The reversal of 1204200302021 is 1202030024021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 922010925796 + 282189376225 = 960214^2 + 531215^2 .

It is a cyclic number.

It is not a de Polignac number, because 1204200302021 - 2² = 1204200302017 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1204200302051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602100151010 + 602100151011.

It is an arithmetic number, because the mean of its divisors is an integer number (602100151011).

Almost surely, 2^{1204200302021} is an apocalyptic number.

It is an amenable number.

1204200302021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204200302021 is an equidigital number, since it uses as much as digits as its factorization.

1204200302021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 1204200302021 its reverse (1202030024021), we get a palindrome (2406230326042).

The spelling of 1204200302021 in words is "one trillion, two hundred four billion, two hundred million, three hundred two thousand, twenty-one".