1000210001 has 12 divisors (see below), whose sum is σ = 1164055140. Its totient is φ = 856920960.

The previous prime is 1000209983. The next prime is 1000210037. The reversal of 1000210001 is 1000120001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 399960001 + 600250000 = 19999^2 + 24500^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1000210001 is a prime.

It is a super-2 number, since 2×1000210001² = 2000840092200840002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1000210061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154061 + ... + 160421.

It is an arithmetic number, because the mean of its divisors is an integer number (97004595).

Almost surely, 2^1000210001 is an apocalyptic number.

It is an amenable number.

1000210001 is a deficient number, since it is larger than the sum of its proper divisors (163845139).

1000210001 is an equidigital number, since it uses as much as digits as its factorization.

1000210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9584 (or 9577 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 1000210001 is about 31626.0968347344. The cubic root of 1000210001 is about 1000.0699954339.

Adding to 1000210001 its reverse (1000120001), we get a palindrome (2000330002).

Subtracting from 1000210001 its reverse (1000120001), we obtain a square (90000 = 300²).

The spelling of 1000210001 in words is "one billion, two hundred ten thousand, one".