2102010001 has 12 divisors (see below), whose sum is σ = 2601305472. Its totient is φ = 1663127856.

The previous prime is 2102009993. The next prime is 2102010023. The reversal of 2102010001 is 1000102012.

It is not a de Polignac number, because 2102010001 - 2³ = 2102009993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102010061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 887241 + ... + 889606.

It is an arithmetic number, because the mean of its divisors is an integer number (216775456).

Almost surely, 2^2102010001 is an apocalyptic number.

It is an amenable number.

2102010001 is a deficient number, since it is larger than the sum of its proper divisors (499295471).

2102010001 is a wasteful number, since it uses less digits than its factorization.

2102010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776880 (or 1776867 counting only the distinct ones).

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

The square root of 2102010001 is about 45847.6826131921. The cubic root of 2102010001 is about 1280.9876006416.

Adding to 2102010001 its reverse (1000102012), we get a palindrome (3102112013).

The spelling of 2102010001 in words is "two billion, one hundred two million, ten thousand, one".