204631222 has 8 divisors (see below), whose sum is σ = 307148400. Its totient is φ = 102248424.

The previous prime is 204631211. The next prime is 204631223. The reversal of 204631222 is 222136402.

204631222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 204631193 and 204631202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204631223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29697 + ... + 35932.

It is an arithmetic number, because the mean of its divisors is an integer number (38393550).

Almost surely, 2^204631222 is an apocalyptic number.

204631222 is a deficient number, since it is larger than the sum of its proper divisors (102517178).

204631222 is a wasteful number, since it uses less digits than its factorization.

204631222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67190.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 204631222 is about 14304.9369799381. The cubic root of 204631222 is about 589.2830725031.

Adding to 204631222 its reverse (222136402), we get a palindrome (426767624).

The spelling of 204631222 in words is "two hundred four million, six hundred thirty-one thousand, two hundred twenty-two".