222665205 has 16 divisors (see below), whose sum is σ = 407159424. Its totient is φ = 101789760.

The previous prime is 222665171. The next prime is 222665221. The reversal of 222665205 is 502566222.

It is not a de Polignac number, because 222665205 - 2¹⁹ = 222140917 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1060206 + ... + 1060415.

It is an arithmetic number, because the mean of its divisors is an integer number (25447464).

Almost surely, 2^222665205 is an apocalyptic number.

It is an amenable number.

222665205 is a deficient number, since it is larger than the sum of its proper divisors (184494219).

222665205 is a wasteful number, since it uses less digits than its factorization.

222665205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120636.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 222665205 is about 14921.9705468145. The cubic root of 222665205 is about 606.1090737018.

The spelling of 222665205 in words is "two hundred twenty-two million, six hundred sixty-five thousand, two hundred five".