202102201 has 4 divisors (see below), whose sum is σ = 230973952. Its totient is φ = 173230452.

The previous prime is 202102157. The next prime is 202102207. The reversal of 202102201 is 102201202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102201202 = 2 ⋅51100601.

It is a cyclic number.

It is not a de Polignac number, because 202102201 - 2¹¹ = 202100153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202102207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14435865 + ... + 14435878.

It is an arithmetic number, because the mean of its divisors is an integer number (57743488).

Almost surely, 2^202102201 is an apocalyptic number.

It is an amenable number.

202102201 is a deficient number, since it is larger than the sum of its proper divisors (28871751).

202102201 is an equidigital number, since it uses as much as digits as its factorization.

202102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28871750.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 202102201 is about 14216.2653675288. The cubic root of 202102201 is about 586.8453680747.

Adding to 202102201 its reverse (102201202), we get a palindrome (304303403).

Subtracting from 202102201 its reverse (102201202), we obtain a palindrome (99900999).

It can be divided in two parts, 202 and 102201, that multiplied together give a palindrome (20644602).

The spelling of 202102201 in words is "two hundred two million, one hundred two thousand, two hundred one".