1222315456 has 28 divisors (see below), whose sum is σ = 2430574768. Its totient is φ = 609887232.

The previous prime is 1222315441. The next prime is 1222315477. The reversal of 1222315456 is 6545132221.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 11560 + ... + 50776.

Almost surely, 2^1222315456 is an apocalyptic number.

1222315456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1222315456 is a deficient number, since it is larger than the sum of its proper divisors (1208259312).

1222315456 is an equidigital number, since it uses as much as digits as its factorization.

1222315456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39716 (or 39706 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 1222315456 is about 34961.6283373644. The cubic root of 1222315456 is about 1069.2052957204.

Adding to 1222315456 its reverse (6545132221), we get a palindrome (7767447677).

The spelling of 1222315456 in words is "one billion, two hundred twenty-two million, three hundred fifteen thousand, four hundred fifty-six".