204121040214004 has 12 divisors (see below), whose sum is σ = 358085198911300. Its totient is φ = 101810983382208.

The previous prime is 204121040213957. The next prime is 204121040214079. The reversal of 204121040214004 is 400412040121402.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 148282933413904 + 55838106800100 = 12177148^2 + 7472490^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 204121040214004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62384179359 + ... + 62384182630.

Almost surely, 2^{204121040214004} is an apocalyptic number.

It is an amenable number.

204121040214004 is a deficient number, since it is larger than the sum of its proper divisors (153964158697296).

204121040214004 is a wasteful number, since it uses less digits than its factorization.

204121040214004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124768362402 (or 124768362400 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 204121040214004 its reverse (400412040121402), we get a palindrome (604533080335406).

The spelling of 204121040214004 in words is "two hundred four trillion, one hundred twenty-one billion, forty million, two hundred fourteen thousand, four".