205310022 has 16 divisors (see below), whose sum is σ = 418368240. Its totient is φ = 67145312.

The previous prime is 205310011. The next prime is 205310023. The reversal of 205310022 is 220013502.

It is a junction number, because it is equal to n+sod(n) for n = 205309983 and 205310010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205310023) 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, 322497 + ... + 323132.

It is an arithmetic number, because the mean of its divisors is an integer number (26148015).

Almost surely, 2^205310022 is an apocalyptic number.

205310022 is an abundant number, since it is smaller than the sum of its proper divisors (213058218).

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

205310022 is a wasteful number, since it uses less digits than its factorization.

205310022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645687.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 205310022 is about 14328.6434110142. The cubic root of 205310022 is about 589.9339407032.

Adding to 205310022 its reverse (220013502), we get a palindrome (425323524).

The spelling of 205310022 in words is "two hundred five million, three hundred ten thousand, twenty-two".