204132132221 has 8 divisors (see below), whose sum is σ = 211436219904. Its totient is φ = 196872993360.

The previous prime is 204132132137. The next prime is 204132132233. The reversal of 204132132221 is 122231231402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204132132221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204132132521) 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, 11227961 + ... + 11246126.

It is an arithmetic number, because the mean of its divisors is an integer number (26429527488).

Almost surely, 2^204132132221 is an apocalyptic number.

It is an amenable number.

204132132221 is a deficient number, since it is larger than the sum of its proper divisors (7304087683).

204132132221 is a wasteful number, since it uses less digits than its factorization.

204132132221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22474411.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 204132132221 its reverse (122231231402), we get a palindrome (326363363623).

The spelling of 204132132221 in words is "two hundred four billion, one hundred thirty-two million, one hundred thirty-two thousand, two hundred twenty-one".