2000001010021 has 4 divisors (see below), whose sum is σ = 2285715440032. Its totient is φ = 1714286580012.

The previous prime is 2000001010009. The next prime is 2000001010031. The reversal of 2000001010021 is 1200101000002.

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 2000001010021 - 2¹¹ = 2000001007973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7), and also a Moran number because the ratio is a prime number: 285714430003 = 2000001010021 / (2 + 0 + 0 + 0 + 0 + 0 + 1 + 0 + 1 + 0 + 0 + 2 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2000001009986 and 2000001010013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000001010031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142857214995 + ... + 142857215008.

It is an arithmetic number, because the mean of its divisors is an integer number (571428860008).

Almost surely, 2^{2000001010021} is an apocalyptic number.

It is an amenable number.

2000001010021 is a deficient number, since it is larger than the sum of its proper divisors (285714430011).

2000001010021 is an equidigital number, since it uses as much as digits as its factorization.

2000001010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285714430010.

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

Adding to 2000001010021 its reverse (1200101000002), we get a palindrome (3200102010023).

The spelling of 2000001010021 in words is "two trillion, one million, ten thousand, twenty-one".