1222017265 has 8 divisors (see below), whose sum is σ = 1675909440. Its totient is φ = 837954672.

The previous prime is 1222017257. The next prime is 1222017287. The reversal of 1222017265 is 5627102221.

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

It is a cyclic number.

It is not a de Polignac number, because 1222017265 - 2³ = 1222017257 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17457355 + ... + 17457424.

It is an arithmetic number, because the mean of its divisors is an integer number (209488680).

Almost surely, 2^1222017265 is an apocalyptic number.

It is an amenable number.

1222017265 is a deficient number, since it is larger than the sum of its proper divisors (453892175).

1222017265 is an equidigital number, since it uses as much as digits as its factorization.

1222017265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34914791.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1222017265 is about 34957.3635304495. The cubic root of 1222017265 is about 1069.1183423552.

Adding to 1222017265 its reverse (5627102221), we get a palindrome (6849119486).

The spelling of 1222017265 in words is "one billion, two hundred twenty-two million, seventeen thousand, two hundred sixty-five".