1222263553 has 8 divisors (see below), whose sum is σ = 1402670720. Its totient is φ = 1043305920.

The previous prime is 1222263541. The next prime is 1222263563. The reversal of 1222263553 is 3553622221.

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

It is a cyclic number.

It is not a de Polignac number, because 1222263553 - 2⁹ = 1222263041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222263503) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 360573 + ... + 363946.

It is an arithmetic number, because the mean of its divisors is an integer number (175333840).

Almost surely, 2^1222263553 is an apocalyptic number.

It is an amenable number.

1222263553 is a deficient number, since it is larger than the sum of its proper divisors (180407167).

1222263553 is an equidigital number, since it uses as much as digits as its factorization.

1222263553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724767.

The product of its digits is 21600, while the sum is 31.

The square root of 1222263553 is about 34960.8860442638. The cubic root of 1222263553 is about 1069.1901616708.

Adding to 1222263553 its reverse (3553622221), we get a palindrome (4775885774).

The spelling of 1222263553 in words is "one billion, two hundred twenty-two million, two hundred sixty-three thousand, five hundred fifty-three".