204502220312240 has 40 divisors (see below), whose sum is σ = 476116322201808. Its totient is φ = 81689290709760.

The previous prime is 204502220312239. The next prime is 204502220312359. The reversal of 204502220312240 is 42213022205402.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×204502220312240² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1743650606 + ... + 1743767885.

Almost surely, 2^{204502220312240} is an apocalyptic number.

204502220312240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204502220312240 is an abundant number, since it is smaller than the sum of its proper divisors (271614101889568).

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

204502220312240 is a wasteful number, since it uses less digits than its factorization.

204502220312240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3487419237 (or 3487419231 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 204502220312240 its reverse (42213022205402), we get a palindrome (246715242517642).

The spelling of 204502220312240 in words is "two hundred four trillion, five hundred two billion, two hundred twenty million, three hundred twelve thousand, two hundred forty".