202120671201 has 4 divisors (see below), whose sum is σ = 269494228272. Its totient is φ = 134747114132.

The previous prime is 202120671169. The next prime is 202120671223. The reversal of 202120671201 is 102176021202.

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.

It is a cyclic number.

It is not a de Polignac number, because 202120671201 - 2⁵ = 202120671169 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (202120671281) 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, 33686778531 + ... + 33686778536.

It is an arithmetic number, because the mean of its divisors is an integer number (67373557068).

Almost surely, 2^202120671201 is an apocalyptic number.

It is an amenable number.

202120671201 is a deficient number, since it is larger than the sum of its proper divisors (67373557071).

202120671201 is an equidigital number, since it uses as much as digits as its factorization.

202120671201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67373557070.

The product of its (nonzero) digits is 672, while the sum is 24.

Adding to 202120671201 its reverse (102176021202), we get a palindrome (304296692403).

The spelling of 202120671201 in words is "two hundred two billion, one hundred twenty million, six hundred seventy-one thousand, two hundred one".