210001020201 has 64 divisors (see below), whose sum is σ = 358139658240. Its totient is φ = 119132208000.

The previous prime is 210001020193. The next prime is 210001020227. The reversal of 210001020201 is 102020100012.

It is not a de Polignac number, because 210001020201 - 2³ = 210001020193 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (210001000201) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14841336 + ... + 14855478.

It is an arithmetic number, because the mean of its divisors is an integer number (5595932160).

Almost surely, 2^210001020201 is an apocalyptic number.

210001020201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210001020201 is a deficient number, since it is larger than the sum of its proper divisors (148138638039).

210001020201 is a wasteful number, since it uses less digits than its factorization.

210001020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14723 (or 14717 counting only the distinct ones).

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

Adding to 210001020201 its reverse (102020100012), we get a palindrome (312021120213).

The spelling of 210001020201 in words is "two hundred ten billion, one million, twenty thousand, two hundred one".