1222255463 has 8 divisors (see below), whose sum is σ = 1435936656. Its totient is φ = 1025668800.

The previous prime is 1222255453. The next prime is 1222255483. The reversal of 1222255463 is 3645522221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1222255463 - 2⁶ = 1222255399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222255453) 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, 4273478 + ... + 4273763.

It is an arithmetic number, because the mean of its divisors is an integer number (179492082).

Almost surely, 2^1222255463 is an apocalyptic number.

1222255463 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1222255463 is a deficient number, since it is larger than the sum of its proper divisors (213681193).

1222255463 is a wasteful number, since it uses less digits than its factorization.

1222255463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8547265.

The product of its digits is 28800, while the sum is 32.

The square root of 1222255463 is about 34960.7703433434. The cubic root of 1222255463 is about 1069.1878027231.

Adding to 1222255463 its reverse (3645522221), we get a palindrome (4867777684).

The spelling of 1222255463 in words is "one billion, two hundred twenty-two million, two hundred fifty-five thousand, four hundred sixty-three".