1220330002 has 8 divisors (see below), whose sum is σ = 1830735036. Its totient is φ = 610084992.

The previous prime is 1220329987. The next prime is 1220330003. The reversal of 1220330002 is 2000330221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1007491081 + 212838921 = 31741^2 + 14589^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 18663 + ... + 52810.

Almost surely, 2^1220330002 is an apocalyptic number.

1220330002 is a deficient number, since it is larger than the sum of its proper divisors (610405034).

1220330002 is an equidigital number, since it uses as much as digits as its factorization.

1220330002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80012.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1220330002 is about 34933.2220386268. Note that the first 3 decimals coincide. The cubic root of 1220330002 is about 1068.6260648918.

Adding to 1220330002 its reverse (2000330221), we get a palindrome (3220660223).

The spelling of 1220330002 in words is "one billion, two hundred twenty million, three hundred thirty thousand, two".