202121220201 has 8 divisors (see below), whose sum is σ = 269589498144. Its totient is φ = 134700211200.

The previous prime is 202121220181. The next prime is 202121220209. The reversal of 202121220201 is 102022121202.

202121220201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 202121220201 - 2³¹ = 199973736553 is a prime.

It is a super-2 number, since 2×202121220201² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (202121220209) 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 7 ways as a sum of consecutive naturals, for example, 11807256 + ... + 11824361.

It is an arithmetic number, because the mean of its divisors is an integer number (33698687268).

Almost surely, 2^202121220201 is an apocalyptic number.

It is an amenable number.

202121220201 is a deficient number, since it is larger than the sum of its proper divisors (67468277943).

202121220201 is a wasteful number, since it uses less digits than its factorization.

202121220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23634471.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 202121220201 its reverse (102022121202), we get a palindrome (304143341403).

The spelling of 202121220201 in words is "two hundred two billion, one hundred twenty-one million, two hundred twenty thousand, two hundred one".