102021002010001 has 8 divisors (see below), whose sum is σ = 113707618339680. Its totient is φ = 90966094671168.

The previous prime is 102021002009959. The next prime is 102021002010029. The reversal of 102021002010001 is 100010200120201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102021002010001 is a prime.

It is a super-2 number, since 2×102021002010001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102021002010001.

It is not an unprimeable number, because it can be changed into a prime (102021002010061) 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, 157927247371 + ... + 157927248016.

It is an arithmetic number, because the mean of its divisors is an integer number (14213452292460).

Almost surely, 2^{102021002010001} is an apocalyptic number.

It is an amenable number.

102021002010001 is a deficient number, since it is larger than the sum of its proper divisors (11686616329679).

102021002010001 is a wasteful number, since it uses less digits than its factorization.

102021002010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315854495423.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 102021002010001 its reverse (100010200120201), we get a palindrome (202031202130202).

The spelling of 102021002010001 in words is "one hundred two trillion, twenty-one billion, two million, ten thousand, one".