205143222 has 16 divisors (see below), whose sum is σ = 410542272. Its totient is φ = 68338440.

The previous prime is 205143217. The next prime is 205143241. The reversal of 205143222 is 222341502.

It is a super-3 number, since 3×205143222³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 697 + ... + 20267.

It is an arithmetic number, because the mean of its divisors is an integer number (25658892).

Almost surely, 2^205143222 is an apocalyptic number.

205143222 is an abundant number, since it is smaller than the sum of its proper divisors (205399050).

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

205143222 is a wasteful number, since it uses less digits than its factorization.

205143222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21323.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 205143222 is about 14322.8217192004. The cubic root of 205143222 is about 589.7741374288.

Adding to 205143222 its reverse (222341502), we get a palindrome (427484724).

The spelling of 205143222 in words is "two hundred five million, one hundred forty-three thousand, two hundred twenty-two".