1220224133 has 4 divisors (see below), whose sum is σ = 1220345280. Its totient is φ = 1220102988.

The previous prime is 1220224121. The next prime is 1220224157. The reversal of 1220224133 is 3314220221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1220224133 - 2⁶ = 1220224069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220224163) by changing a digit.

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, 43943 + ... + 66116.

It is an arithmetic number, because the mean of its divisors is an integer number (305086320).

Almost surely, 2^1220224133 is an apocalyptic number.

It is an amenable number.

1220224133 is a deficient number, since it is larger than the sum of its proper divisors (121147).

1220224133 is a wasteful number, since it uses less digits than its factorization.

1220224133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121146.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1220224133 is about 34931.7067003603. The cubic root of 1220224133 is about 1068.5951613263.

Adding to 1220224133 its reverse (3314220221), we get a palindrome (4534444354).

The spelling of 1220224133 in words is "one billion, two hundred twenty million, two hundred twenty-four thousand, one hundred thirty-three".