2001220006 has 8 divisors (see below), whose sum is σ = 3002068800. Its totient is φ = 1000530408.

The previous prime is 2001219967. The next prime is 2001220007. The reversal of 2001220006 is 6000221002.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001220007) 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, 681 + ... + 63268.

It is an arithmetic number, because the mean of its divisors is an integer number (375258600).

Almost surely, 2^2001220006 is an apocalyptic number.

2001220006 is a deficient number, since it is larger than the sum of its proper divisors (1000848794).

2001220006 is a wasteful number, since it uses less digits than its factorization.

2001220006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79598.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2001220006 is about 44734.9975522521. The cubic root of 2001220006 is about 1260.1771830280.

Adding to 2001220006 its reverse (6000221002), we get a palindrome (8001441008).

The spelling of 2001220006 in words is "two billion, one million, two hundred twenty thousand, six".