1223217005 has 8 divisors (see below), whose sum is σ = 1475971224. Its totient is φ = 973166400.

The previous prime is 1223216999. The next prime is 1223217043. The reversal of 1223217005 is 5007123221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 106276 + 1223110729 = 326^2 + 34973^2 .

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

It is not a de Polignac number, because 1223217005 - 2⁴ = 1223216989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 674906 + ... + 676715.

It is an arithmetic number, because the mean of its divisors is an integer number (184496403).

Almost surely, 2^1223217005 is an apocalyptic number.

It is an amenable number.

1223217005 is a deficient number, since it is larger than the sum of its proper divisors (252754219).

1223217005 is a wasteful number, since it uses less digits than its factorization.

1223217005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351807.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 1223217005 is about 34974.5193676768. The cubic root of 1223217005 is about 1069.4681040553.

The spelling of 1223217005 in words is "one billion, two hundred twenty-three million, two hundred seventeen thousand, five".