1222443505 has 8 divisors (see below), whose sum is σ = 1484606592. Its totient is φ = 966171888.

The previous prime is 1222443503. The next prime is 1222443511. The reversal of 1222443505 is 5053442221.

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 1222443505 - 2¹ = 1222443503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222443503) 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, 1472409 + ... + 1473238.

It is an arithmetic number, because the mean of its divisors is an integer number (185575824).

Almost surely, 2^1222443505 is an apocalyptic number.

It is an amenable number.

1222443505 is a deficient number, since it is larger than the sum of its proper divisors (262163087).

1222443505 is an equidigital number, since it uses as much as digits as its factorization.

1222443505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945735.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 1222443505 is about 34963.4595685267. The cubic root of 1222443505 is about 1069.2426308419.

Adding to 1222443505 its reverse (5053442221), we get a palindrome (6275885726).

The spelling of 1222443505 in words is "one billion, two hundred twenty-two million, four hundred forty-three thousand, five hundred five".