1224223505 has 8 divisors (see below), whose sum is σ = 1489192872. Its totient is φ = 965962368.

The previous prime is 1224223493. The next prime is 1224223529. The reversal of 1224223505 is 5053224221.

It can be written as a sum of positive squares in 4 ways, for example, as 267682321 + 956541184 = 16361^2 + 30928^2 .

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 1224223505 - 2⁴ = 1224223489 is a prime.

It is a Duffinian number.

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, 1676654 + ... + 1677383.

It is an arithmetic number, because the mean of its divisors is an integer number (186149109).

Almost surely, 2^1224223505 is an apocalyptic number.

It is an amenable number.

1224223505 is a deficient number, since it is larger than the sum of its proper divisors (264969367).

1224223505 is an equidigital number, since it uses as much as digits as its factorization.

1224223505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3354115.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1224223505 is about 34988.9054558727. The cubic root of 1224223505 is about 1069.7613538876.

Adding to 1224223505 its reverse (5053224221), we get a palindrome (6277447726).

The spelling of 1224223505 in words is "one billion, two hundred twenty-four million, two hundred twenty-three thousand, five hundred five".