205221414 has 8 divisors (see below), whose sum is σ = 410442840. Its totient is φ = 68407136.

The previous prime is 205221409. The next prime is 205221421. The reversal of 205221414 is 414122502.

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

205221414 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17101779 + ... + 17101790.

It is an arithmetic number, because the mean of its divisors is an integer number (51305355).

Almost surely, 2^205221414 is an apocalyptic number.

205221414 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

205221414 is a wasteful number, since it uses less digits than its factorization.

205221414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34203574.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 205221414 is about 14325.5510888761. The cubic root of 205221414 is about 589.8490603063.

Adding to 205221414 its reverse (414122502), we get a palindrome (619343916).

The spelling of 205221414 in words is "two hundred five million, two hundred twenty-one thousand, four hundred fourteen".