2001001020010 has 16 divisors (see below), whose sum is σ = 3660847768872. Its totient is φ = 787279089600.

The previous prime is 2001001019929. The next prime is 2001001020019. The reversal of 2001001020010 is 100201001002.

It can be written as a sum of positive squares in 4 ways, for example, as 415363493169 + 1585637526841 = 644487^2 + 1259221^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2001001019975 and 2001001020002.

It is not an unprimeable number, because it can be changed into a prime (2001001020019) 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 7 ways as a sum of consecutive naturals, for example, 1640164161 + ... + 1640165380.

Almost surely, 2^{2001001020010} is an apocalyptic number.

2001001020010 is a deficient number, since it is larger than the sum of its proper divisors (1659846748862).

2001001020010 is a wasteful number, since it uses less digits than its factorization.

2001001020010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3280329609.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 2001001020010 its reverse (100201001002), we get a palindrome (2101202021012).

The spelling of 2001001020010 in words is "two trillion, one billion, one million, twenty thousand, ten".