1222122544 has 20 divisors (see below), whose sum is σ = 2396393496. Its totient is φ = 603698432.

The previous prime is 1222122527. The next prime is 1222122557. The reversal of 1222122544 is 4452212221.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458809 + ... + 461464.

Almost surely, 2^1222122544 is an apocalyptic number.

It is an amenable number.

1222122544 is a deficient number, since it is larger than the sum of its proper divisors (1174270952).

1222122544 is an equidigital number, since it uses as much as digits as its factorization.

1222122544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920364 (or 920358 counting only the distinct ones).

The product of its digits is 2560, while the sum is 25.

The square root of 1222122544 is about 34958.8693181001. The cubic root of 1222122544 is about 1069.1490436339.

Adding to 1222122544 its reverse (4452212221), we get a palindrome (5674334765).

The spelling of 1222122544 in words is "one billion, two hundred twenty-two million, one hundred twenty-two thousand, five hundred forty-four".