102020010201 has 24 divisors (see below), whose sum is σ = 156227112704. Its totient is φ = 64040453280.

The previous prime is 102020010151. The next prime is 102020010221. The reversal of 102020010201 is 102010020201.

It is not a de Polignac number, because 102020010201 - 2¹⁰ = 102020009177 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102020010221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4931071 + ... + 4951716.

Almost surely, 2^102020010201 is an apocalyptic number.

It is an amenable number.

102020010201 is a deficient number, since it is larger than the sum of its proper divisors (54207102503).

102020010201 is a wasteful number, since it uses less digits than its factorization.

102020010201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9882861 (or 9882858 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 102020010201 its reverse (102010020201), we get a palindrome (204030030402).

The spelling of 102020010201 in words is "one hundred two billion, twenty million, ten thousand, two hundred one".