1222247459 has 4 divisors (see below), whose sum is σ = 1236973416. Its totient is φ = 1207521504.

The previous prime is 1222247443. The next prime is 1222247461. The reversal of 1222247459 is 9547422221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1222247459 - 2⁴ = 1222247443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222247489) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7362854 + ... + 7363019.

It is an arithmetic number, because the mean of its divisors is an integer number (309243354).

Almost surely, 2^1222247459 is an apocalyptic number.

1222247459 is a deficient number, since it is larger than the sum of its proper divisors (14725957).

1222247459 is an equidigital number, since it uses as much as digits as its factorization.

1222247459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14725956.

The product of its digits is 80640, while the sum is 38.

The square root of 1222247459 is about 34960.6558719942. The cubic root of 1222247459 is about 1069.1854688417.

The spelling of 1222247459 in words is "one billion, two hundred twenty-two million, two hundred forty-seven thousand, four hundred fifty-nine".