204020022011240 has 32 divisors (see below), whose sum is σ = 469720515797280. Its totient is φ = 79710148133952.

The previous prime is 204020022011209. The next prime is 204020022011249. The reversal of 204020022011240 is 42110220020402.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (204020022011249) 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 in 7 ways as a sum of consecutive naturals, for example, 59308144214 + ... + 59308147653.

It is an arithmetic number, because the mean of its divisors is an integer number (14678766118665).

Almost surely, 2^{204020022011240} is an apocalyptic number.

204020022011240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204020022011240 is an abundant number, since it is smaller than the sum of its proper divisors (265700493786040).

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

204020022011240 is a wasteful number, since it uses less digits than its factorization.

204020022011240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118616291921 (or 118616291917 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 204020022011240 its reverse (42110220020402), we get a palindrome (246130242031642).

The spelling of 204020022011240 in words is "two hundred four trillion, twenty billion, twenty-two million, eleven thousand, two hundred forty".