222402065 has 8 divisors (see below), whose sum is σ = 278486208. Its totient is φ = 170185840.

The previous prime is 222402031. The next prime is 222402071. The reversal of 222402065 is 560204222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222402065 - 2¹⁶ = 222336529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 222402065.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 966851 + ... + 967080.

It is an arithmetic number, because the mean of its divisors is an integer number (34810776).

Almost surely, 2^222402065 is an apocalyptic number.

It is an amenable number.

222402065 is a deficient number, since it is larger than the sum of its proper divisors (56084143).

222402065 is a wasteful number, since it uses less digits than its factorization.

222402065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933959.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 222402065 is about 14913.1507402024. The cubic root of 222402065 is about 605.8702182257.

Adding to 222402065 its reverse (560204222), we get a palindrome (782606287).

The spelling of 222402065 in words is "two hundred twenty-two million, four hundred two thousand, sixty-five".