1222635503 has 16 divisors (see below), whose sum is σ = 1300992000. Its totient is φ = 1145754720.

The previous prime is 1222635493. The next prime is 1222635517. The reversal of 1222635503 is 3055362221.

It is not a de Polignac number, because 1222635503 - 2⁸ = 1222635247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222635103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 721325 + ... + 723017.

It is an arithmetic number, because the mean of its divisors is an integer number (81312000).

Almost surely, 2^1222635503 is an apocalyptic number.

1222635503 is a deficient number, since it is larger than the sum of its proper divisors (78356497).

1222635503 is a wasteful number, since it uses less digits than its factorization.

1222635503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 1222635503 is about 34966.2051558358. The cubic root of 1222635503 is about 1069.2986066256.

Adding to 1222635503 its reverse (3055362221), we get a palindrome (4277997724).

The spelling of 1222635503 in words is "one billion, two hundred twenty-two million, six hundred thirty-five thousand, five hundred three".