204300221341221 has 12 divisors (see below), whose sum is σ = 295100774792460. Its totient is φ = 136199937525120.

The previous prime is 204300221341217. The next prime is 204300221341243. The reversal of 204300221341221 is 122143122003402.

204300221341221 is a `hidden beast` number, since 2 + 0 + 4 + 3 + 0 + 0 + 221 + 3 + 412 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12799321932996 + 191500899408225 = 3577614^2 + 13838385^2 .

It is not a de Polignac number, because 204300221341221 - 2² = 204300221341217 is a prime.

It is a super-2 number, since 2×204300221341221² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204300221341211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11224036 + ... + 23120973.

It is an arithmetic number, because the mean of its divisors is an integer number (24591731232705).

Almost surely, 2^{204300221341221} is an apocalyptic number.

It is an amenable number.

204300221341221 is a deficient number, since it is larger than the sum of its proper divisors (90800553451239).

204300221341221 is a wasteful number, since it uses less digits than its factorization.

204300221341221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35005956 (or 35005953 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 204300221341221 its reverse (122143122003402), we get a palindrome (326443343344623).

The spelling of 204300221341221 in words is "two hundred four trillion, three hundred billion, two hundred twenty-one million, three hundred forty-one thousand, two hundred twenty-one".