210210100100001 has 8 divisors (see below), whose sum is σ = 311422370518560. Its totient is φ = 140140066733316.

The previous prime is 210210100099931. The next prime is 210210100100023. The reversal of 210210100100001 is 100001001012012.

It is a happy number.

It is not a de Polignac number, because 210210100100001 - 2¹⁴ = 210210100083617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (210210100100201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3892779631455 + ... + 3892779631508.

It is an arithmetic number, because the mean of its divisors is an integer number (38927796314820).

Almost surely, 2^{210210100100001} is an apocalyptic number.

It is an amenable number.

210210100100001 is a deficient number, since it is larger than the sum of its proper divisors (101212270418559).

210210100100001 is an equidigital number, since it uses as much as digits as its factorization.

210210100100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7785559262972 (or 7785559262966 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 210210100100001 its reverse (100001001012012), we get a palindrome (310211101112013).

The spelling of 210210100100001 in words is "two hundred ten trillion, two hundred ten billion, one hundred million, one hundred thousand, one".