2001010120001 has 4 divisors (see below), whose sum is σ = 2015405876400. Its totient is φ = 1986614363604.

The previous prime is 2001010119971. The next prime is 2001010120003. The reversal of 2001010120001 is 1000210101002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2001010120001 - 2⁶ = 2001010119937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001010120003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7197877991 + ... + 7197878268.

It is an arithmetic number, because the mean of its divisors is an integer number (503851469100).

Almost surely, 2^{2001010120001} is an apocalyptic number.

It is an amenable number.

2001010120001 is a deficient number, since it is larger than the sum of its proper divisors (14395756399).

2001010120001 is a wasteful number, since it uses less digits than its factorization.

2001010120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14395756398.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 2001010120001 its reverse (1000210101002), we get a palindrome (3001220221003).

The spelling of 2001010120001 in words is "two trillion, one billion, ten million, one hundred twenty thousand, one".