1220330005 has 32 divisors (see below), whose sum is σ = 1599840000. Its totient is φ = 890072064.

The previous prime is 1220330003. The next prime is 1220330009. The reversal of 1220330005 is 5000330221.

It is a cyclic number.

It is not a de Polignac number, because 1220330005 - 2¹ = 1220330003 is a prime.

It is a super-2 number, since 2×1220330005² = 2978410642206600050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220330003) 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 31 ways as a sum of consecutive naturals, for example, 1208941 + ... + 1209949.

It is an arithmetic number, because the mean of its divisors is an integer number (49995000).

Almost surely, 2^1220330005 is an apocalyptic number.

It is an amenable number.

1220330005 is a deficient number, since it is larger than the sum of its proper divisors (379509995).

1220330005 is a wasteful number, since it uses less digits than its factorization.

1220330005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 1220330005 is about 34933.2220815659. Note that the first 3 decimals coincide. The cubic root of 1220330005 is about 1068.6260657675.

Adding to 1220330005 its reverse (5000330221), we get a palindrome (6220660226).

The spelling of 1220330005 in words is "one billion, two hundred twenty million, three hundred thirty thousand, five".