2001021014 has 4 divisors (see below), whose sum is σ = 3001531524. Its totient is φ = 1000510506.

The previous prime is 2001020981. The next prime is 2001021053. The reversal of 2001021014 is 4101201002.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2001020986 and 2001021004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500255252 + ... + 500255255.

It is an arithmetic number, because the mean of its divisors is an integer number (750382881).

Almost surely, 2^2001021014 is an apocalyptic number.

2001021014 is a deficient number, since it is larger than the sum of its proper divisors (1000510510).

2001021014 is a wasteful number, since it uses less digits than its factorization.

2001021014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000510509.

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

The square root of 2001021014 is about 44732.7733770219. The cubic root of 2001021014 is about 1260.1354129262.

Adding to 2001021014 its reverse (4101201002), we get a palindrome (6102222016).

The spelling of 2001021014 in words is "two billion, one million, twenty-one thousand, fourteen".