2001000021010 has 64 divisors (see below), whose sum is σ = 3691183841280. Its totient is φ = 780815206080.

The previous prime is 2001000020989. The next prime is 2001000021019. The reversal of 2001000021010 is 101200001002.

It is a junction number, because it is equal to n+sod(n) for n = 2001000020984 and 2001000021002.

It is not an unprimeable number, because it can be changed into a prime (2001000021019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36019155 + ... + 36074665.

It is an arithmetic number, because the mean of its divisors is an integer number (57674747520).

Almost surely, 2^{2001000021010} is an apocalyptic number.

2001000021010 is a deficient number, since it is larger than the sum of its proper divisors (1690183820270).

2001000021010 is a wasteful number, since it uses less digits than its factorization.

2001000021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56143.

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

Adding to 2001000021010 its reverse (101200001002), we get a palindrome (2102200022012).

The spelling of 2001000021010 in words is "two trillion, one billion, twenty-one thousand, ten".