204220330421124 has 48 divisors (see below), whose sum is σ = 476612516040192. Its totient is φ = 68059385759232.

The previous prime is 204220330421089. The next prime is 204220330421131. The reversal of 204220330421124 is 421124033022402.

It is a junction number, because it is equal to n+sod(n) for n = 204220330421091 and 204220330421100.

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 15 ways as a sum of consecutive naturals, for example, 1919798002 + ... + 1919904374.

It is an arithmetic number, because the mean of its divisors is an integer number (9929427417504).

Almost surely, 2^{204220330421124} is an apocalyptic number.

It is an amenable number.

204220330421124 is an abundant number, since it is smaller than the sum of its proper divisors (272392185619068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204220330421124 is a wasteful number, since it uses less digits than its factorization.

204220330421124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137916 (or 137914 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 204220330421124 its reverse (421124033022402), we get a palindrome (625344363443526).

The spelling of 204220330421124 in words is "two hundred four trillion, two hundred twenty billion, three hundred thirty million, four hundred twenty-one thousand, one hundred twenty-four".