222412605 has 16 divisors (see below), whose sum is σ = 359385984. Its totient is φ = 117444800.

The previous prime is 222412559. The next prime is 222412607. The reversal of 222412605 is 506214222.

It is a happy number.

It is not a de Polignac number, because 222412605 - 2⁸ = 222412349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222412607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71889 + ... + 74918.

It is an arithmetic number, because the mean of its divisors is an integer number (22461624).

Almost surely, 2^222412605 is an apocalyptic number.

It is an amenable number.

222412605 is a deficient number, since it is larger than the sum of its proper divisors (136973379).

222412605 is a wasteful number, since it uses less digits than its factorization.

222412605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146916.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 222412605 is about 14913.5041153982. The cubic root of 222412605 is about 605.8797891369.

Adding to 222412605 its reverse (506214222), we get a palindrome (728626827).

The spelling of 222412605 in words is "two hundred twenty-two million, four hundred twelve thousand, six hundred five".