205530221452 has 24 divisors (see below), whose sum is σ = 361946491200. Its totient is φ = 102117154896.

The previous prime is 205530221423. The next prime is 205530221453. The reversal of 205530221452 is 254122035502.

It is not an unprimeable number, because it can be changed into a prime (205530221453) 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, 4317999 + ... + 4365337.

It is an arithmetic number, because the mean of its divisors is an integer number (15081103800).

Almost surely, 2^205530221452 is an apocalyptic number.

It is an amenable number.

205530221452 is a deficient number, since it is larger than the sum of its proper divisors (156416269748).

205530221452 is a wasteful number, since it uses less digits than its factorization.

205530221452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54165 (or 54163 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 205530221452 its reverse (254122035502), we get a palindrome (459652256954).

The spelling of 205530221452 in words is "two hundred five billion, five hundred thirty million, two hundred twenty-one thousand, four hundred fifty-two".