2021010000001 has 4 divisors (see below), whose sum is σ = 2023298800432. Its totient is φ = 2018721199572.

The previous prime is 2021009999999. The next prime is 2021010000047. The reversal of 2021010000001 is 1000000101202.

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 2021010000001 - 2¹ = 2021009999999 is a prime.

It is a super-3 number, since 3×2021010000001³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021010000091) 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, 1144398891 + ... + 1144400656.

It is an arithmetic number, because the mean of its divisors is an integer number (505824700108).

Almost surely, 2^{2021010000001} is an apocalyptic number.

It is an amenable number.

2021010000001 is a deficient number, since it is larger than the sum of its proper divisors (2288800431).

2021010000001 is an equidigital number, since it uses as much as digits as its factorization.

2021010000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2288800430.

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

Adding to 2021010000001 its reverse (1000000101202), we get a palindrome (3021010101203).

The spelling of 2021010000001 in words is "two trillion, twenty-one billion, ten million, one", and thus it is an aban number and an uban number.