1220330043 has 40 divisors (see below), whose sum is σ = 1959851520. Its totient is φ = 754291440.

The previous prime is 1220330039. The next prime is 1220330051. The reversal of 1220330043 is 3400330221.

It is not a de Polignac number, because 1220330043 - 2² = 1220330039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220329998 and 1220330025.

It is not an unprimeable number, because it can be changed into a prime (1220330003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 63898 + ... + 80768.

It is an arithmetic number, because the mean of its divisors is an integer number (48996288).

Almost surely, 2^1220330043 is an apocalyptic number.

1220330043 is a deficient number, since it is larger than the sum of its proper divisors (739521477).

1220330043 is a wasteful number, since it uses less digits than its factorization.

1220330043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16949 (or 16940 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 1220330043 is about 34933.2226254607. Note that the first 3 decimals coincide. The cubic root of 1220330043 is about 1068.6260768596.

Adding to 1220330043 its reverse (3400330221), we get a palindrome (4620660264).

The spelling of 1220330043 in words is "one billion, two hundred twenty million, three hundred thirty thousand, forty-three".