204220439999 has 8 divisors (see below), whose sum is σ = 210814064640. Its totient is φ = 197627182200.

The previous prime is 204220439989. The next prime is 204220440059. The reversal of 204220439999 is 999934022402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204220439999 - 2²⁰ = 204219391423 is a prime.

It is a super-2 number, since 2×204220439999² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204220439999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204220439909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1452782 + ... + 1587140.

It is an arithmetic number, because the mean of its divisors is an integer number (26351758080).

Almost surely, 2^204220439999 is an apocalyptic number.

204220439999 is a deficient number, since it is larger than the sum of its proper divisors (6593624641).

204220439999 is a wasteful number, since it uses less digits than its factorization.

204220439999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183421.

The product of its (nonzero) digits is 2519424, while the sum is 53.

The spelling of 204220439999 in words is "two hundred four billion, two hundred twenty million, four hundred thirty-nine thousand, nine hundred ninety-nine".