2001201220010 has 8 divisors (see below), whose sum is σ = 3602162196036. Its totient is φ = 800480488000.

The previous prime is 2001201220001. The next prime is 2001201220157. The reversal of 2001201220010 is 100221021002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1969467004129 + 31734215881 = 1403377^2 + 178141^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2001201219973 and 2001201220000.

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, 100060060991 + ... + 100060061010.

Almost surely, 2^{2001201220010} is an apocalyptic number.

2001201220010 is a deficient number, since it is larger than the sum of its proper divisors (1600960976026).

2001201220010 is a wasteful number, since it uses less digits than its factorization.

2001201220010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200120122008.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2001201220010 its reverse (100221021002), we get a palindrome (2101422241012).

The spelling of 2001201220010 in words is "two trillion, one billion, two hundred one million, two hundred twenty thousand, ten".