222404247 has 12 divisors (see below), whose sum is σ = 345962344. Its totient is φ = 136864080.

The previous prime is 222404239. The next prime is 222404263. The reversal of 222404247 is 742404222.

It is not a de Polignac number, because 222404247 - 2³ = 222404239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222404247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222404207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 950329 + ... + 950562.

Almost surely, 2^222404247 is an apocalyptic number.

222404247 is a deficient number, since it is larger than the sum of its proper divisors (123558097).

222404247 is a wasteful number, since it uses less digits than its factorization.

222404247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900910 (or 1900907 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 27.

The square root of 222404247 is about 14913.2238969312. The cubic root of 222404247 is about 605.8721996290.

Adding to 222404247 its reverse (742404222), we get a palindrome (964808469).

The spelling of 222404247 in words is "two hundred twenty-two million, four hundred four thousand, two hundred forty-seven".