210212110001 has 4 divisors (see below), whose sum is σ = 211114308132. Its totient is φ = 209309911872.

The previous prime is 210212109973. The next prime is 210212110007. The reversal of 210212110001 is 100011212012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25484929600 + 184727180401 = 159640^2 + 429799^2 .

It is a cyclic number.

It is not a de Polignac number, because 210212110001 - 2²⁶ = 210145001137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210212110007) 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, 451098716 + ... + 451099181.

It is an arithmetic number, because the mean of its divisors is an integer number (52778577033).

Almost surely, 2^210212110001 is an apocalyptic number.

It is an amenable number.

210212110001 is a deficient number, since it is larger than the sum of its proper divisors (902198131).

210212110001 is an equidigital number, since it uses as much as digits as its factorization.

210212110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902198130.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 210212110001 its reverse (100011212012), we get a palindrome (310223322013).

The spelling of 210212110001 in words is "two hundred ten billion, two hundred twelve million, one hundred ten thousand, one".