205162212 has 12 divisors (see below), whose sum is σ = 478711856. Its totient is φ = 68387400.

The previous prime is 205162207. The next prime is 205162229. The reversal of 205162212 is 212261502.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8548414 + ... + 8548437.

Almost surely, 2^205162212 is an apocalyptic number.

It is an amenable number.

205162212 is an abundant number, since it is smaller than the sum of its proper divisors (273549644).

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

205162212 is a wasteful number, since it uses less digits than its factorization.

205162212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17096858 (or 17096856 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 205162212 is about 14323.4846318904. The cubic root of 205162212 is about 589.7923352277.

The spelling of 205162212 in words is "two hundred five million, one hundred sixty-two thousand, two hundred twelve".