211012002102001 has 4 divisors (see below), whose sum is σ = 211048078702500. Its totient is φ = 210975925501504.

The previous prime is 211012002101963. The next prime is 211012002102017. The reversal of 211012002102001 is 100201200210112.

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 22229348469601 + 188782653632400 = 4714801^2 + 13739820^2 .

It is a cyclic number.

It is not a de Polignac number, because 211012002102001 - 2¹⁵ = 211012002069233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211012002102071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18038291476 + ... + 18038303173.

It is an arithmetic number, because the mean of its divisors is an integer number (52762019675625).

Almost surely, 2^{211012002102001} is an apocalyptic number.

It is an amenable number.

211012002102001 is a deficient number, since it is larger than the sum of its proper divisors (36076600499).

211012002102001 is an equidigital number, since it uses as much as digits as its factorization.

211012002102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36076600498.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211012002102001 its reverse (100201200210112), we get a palindrome (311213202312113).

The spelling of 211012002102001 in words is "two hundred eleven trillion, twelve billion, two million, one hundred two thousand, one".