102021002110001 has 4 divisors (see below), whose sum is σ = 109868771503092. Its totient is φ = 94173232716912.

The previous prime is 102021002109937. The next prime is 102021002110007. The reversal of 102021002110001 is 100011200120201.

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 4424859496225 + 97596142613776 = 2103535^2 + 9879076^2 .

It is a cyclic number.

It is not a de Polignac number, because 102021002110001 - 2⁶ = 102021002109937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102021002110007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3923884696526 + ... + 3923884696551.

It is an arithmetic number, because the mean of its divisors is an integer number (27467192875773).

Almost surely, 2^{102021002110001} is an apocalyptic number.

It is an amenable number.

102021002110001 is a deficient number, since it is larger than the sum of its proper divisors (7847769393091).

102021002110001 is an equidigital number, since it uses as much as digits as its factorization.

102021002110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7847769393090.

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

Adding to 102021002110001 its reverse (100011200120201), we get a palindrome (202032202230202).

The spelling of 102021002110001 in words is "one hundred two trillion, twenty-one billion, two million, one hundred ten thousand, one".