1122217665 has 8 divisors (see below), whose sum is σ = 1795548288. Its totient is φ = 598516080.

The previous prime is 1122217661. The next prime is 1122217667. The reversal of 1122217665 is 5667122211.

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

It is not a de Polignac number, because 1122217665 - 2² = 1122217661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1122217661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37407241 + ... + 37407270.

It is an arithmetic number, because the mean of its divisors is an integer number (224443536).

Almost surely, 2^1122217665 is an apocalyptic number.

1122217665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1122217665 is a deficient number, since it is larger than the sum of its proper divisors (673330623).

1122217665 is an equidigital number, since it uses as much as digits as its factorization.

1122217665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74814519.

The product of its digits is 10080, while the sum is 33.

The square root of 1122217665 is about 33499.5173845833. The cubic root of 1122217665 is about 1039.1837977821.

Adding to 1122217665 its reverse (5667122211), we get a palindrome (6789339876).

The spelling of 1122217665 in words is "one billion, one hundred twenty-two million, two hundred seventeen thousand, six hundred sixty-five".