222246605 has 24 divisors (see below), whose sum is σ = 318635928. Its totient is φ = 148272768.

The previous prime is 222246599. The next prime is 222246611. The reversal of 222246605 is 506642222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (222246599) and next prime (222246611).

It can be written as a sum of positive squares in 4 ways, for example, as 33431524 + 188815081 = 5782^2 + 13741^2 .

It is not a de Polignac number, because 222246605 - 2¹⁴ = 222230221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3194 + ... + 21323.

It is an arithmetic number, because the mean of its divisors is an integer number (13276497).

Almost surely, 2^222246605 is an apocalyptic number.

It is an amenable number.

222246605 is a deficient number, since it is larger than the sum of its proper divisors (96389323).

222246605 is a wasteful number, since it uses less digits than its factorization.

222246605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24573 (or 24566 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 222246605 is about 14907.9376507953. The cubic root of 222246605 is about 605.7290166910.

Adding to 222246605 its reverse (506642222), we get a palindrome (728888827).

The spelling of 222246605 in words is "two hundred twenty-two million, two hundred forty-six thousand, six hundred five".