1220330042 has 8 divisors (see below), whose sum is σ = 1830724500. Its totient is φ = 610088544.

The previous prime is 1220330039. The next prime is 1220330051. The reversal of 1220330042 is 2400330221.

It can be written as a sum of positive squares in 2 ways, for example, as 1182740881 + 37589161 = 34391^2 + 6131^2 .

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

It is a super-2 number, since 2×1220330042² = 2978410822815443528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1220330042.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15617 + ... + 51812.

Almost surely, 2^1220330042 is an apocalyptic number.

1220330042 is a deficient number, since it is larger than the sum of its proper divisors (610394458).

1220330042 is an equidigital number, since it uses as much as digits as its factorization.

1220330042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76480.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1220330042 is about 34933.2226111477. Note that the first 3 decimals coincide. The cubic root of 1220330042 is about 1068.6260765677.

Adding to 1220330042 its reverse (2400330221), we get a palindrome (3620660263).

The spelling of 1220330042 in words is "one billion, two hundred twenty million, three hundred thirty thousand, forty-two".