1222247455 has 64 divisors (see below), whose sum is σ = 1809174528. Its totient is φ = 780572160.

The previous prime is 1222247443. The next prime is 1222247461. The reversal of 1222247455 is 5547422221.

It is not a de Polignac number, because 1222247455 - 2²⁹ = 685376543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222247455.

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 63 ways as a sum of consecutive naturals, for example, 1242894 + ... + 1243876.

It is an arithmetic number, because the mean of its divisors is an integer number (28268352).

Almost surely, 2^1222247455 is an apocalyptic number.

1222247455 is a deficient number, since it is larger than the sum of its proper divisors (586927073).

1222247455 is a wasteful number, since it uses less digits than its factorization.

1222247455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096.

The product of its digits is 44800, while the sum is 34.

The square root of 1222247455 is about 34960.6558147870. The cubic root of 1222247455 is about 1069.1854676753.

Adding to 1222247455 its reverse (5547422221), we get a palindrome (6769669676).

The spelling of 1222247455 in words is "one billion, two hundred twenty-two million, two hundred forty-seven thousand, four hundred fifty-five".