2001220206 has 8 divisors (see below), whose sum is σ = 4002440424. Its totient is φ = 667073400.

The previous prime is 2001220181. The next prime is 2001220211. The reversal of 2001220206 is 6020221002.

2001220206 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

2001220206 is an admirable number.

It is a congruent number.

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, 166768345 + ... + 166768356.

It is an arithmetic number, because the mean of its divisors is an integer number (500305053).

Almost surely, 2^2001220206 is an apocalyptic number.

2001220206 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001220206 is a wasteful number, since it uses less digits than its factorization.

2001220206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333536706.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2001220206 is about 44734.9997876383. Note that the first 3 decimals coincide. The cubic root of 2001220206 is about 1260.1772250083.

Adding to 2001220206 its reverse (6020221002), we get a palindrome (8021441208).

The spelling of 2001220206 in words is "two billion, one million, two hundred twenty thousand, two hundred six".