2001220315 has 8 divisors (see below), whose sum is σ = 2527857360. Its totient is φ = 1516714272.

The previous prime is 2001220307. The next prime is 2001220349. The reversal of 2001220315 is 5130221002.

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

It is a cyclic number.

It is not a de Polignac number, because 2001220315 - 2³ = 2001220307 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10532644 + ... + 10532833.

It is an arithmetic number, because the mean of its divisors is an integer number (315982170).

Almost surely, 2^2001220315 is an apocalyptic number.

2001220315 is a deficient number, since it is larger than the sum of its proper divisors (526637045).

2001220315 is a wasteful number, since it uses less digits than its factorization.

2001220315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21065501.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2001220315 is about 44735.0010059238. The cubic root of 2001220315 is about 1260.1772478876.

Adding to 2001220315 its reverse (5130221002), we get a palindrome (7131441317).

The spelling of 2001220315 in words is "two billion, one million, two hundred twenty thousand, three hundred fifteen".