102021020201 has 16 divisors (see below), whose sum is σ = 110532806400. Its totient is φ = 93863577600.

The previous prime is 102021020183. The next prime is 102021020207. The reversal of 102021020201 is 102020120201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 102021020201 - 2²⁶ = 101953911337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102021020207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 465560 + ... + 648681.

It is an arithmetic number, because the mean of its divisors is an integer number (6908300400).

Almost surely, 2^102021020201 is an apocalyptic number.

It is an amenable number.

102021020201 is a deficient number, since it is larger than the sum of its proper divisors (8511786199).

102021020201 is a wasteful number, since it uses less digits than its factorization.

102021020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114400.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 102021020201 its reverse (102020120201), we get a palindrome (204041140402).

The spelling of 102021020201 in words is "one hundred two billion, twenty-one million, twenty thousand, two hundred one".