202120102201 has 4 divisors (see below), whose sum is σ = 203360102992. Its totient is φ = 200880101412.

The previous prime is 202120102193. The next prime is 202120102241. The reversal of 202120102201 is 102201021202.

It is a happy number.

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 202120102201 - 2³ = 202120102193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202120102241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620000151 + ... + 620000476.

It is an arithmetic number, because the mean of its divisors is an integer number (50840025748).

Almost surely, 2^202120102201 is an apocalyptic number.

It is an amenable number.

202120102201 is a deficient number, since it is larger than the sum of its proper divisors (1240000791).

202120102201 is a wasteful number, since it uses less digits than its factorization.

202120102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240000790.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202120102201 its reverse (102201021202), we get a palindrome (304321123403).

The spelling of 202120102201 in words is "two hundred two billion, one hundred twenty million, one hundred two thousand, two hundred one".