202201200221 has 4 divisors (see below), whose sum is σ = 203006782944. Its totient is φ = 201395617500.

The previous prime is 202201200217. The next prime is 202201200239. The reversal of 202201200221 is 122002102202.

202201200221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 202201200221 - 2² = 202201200217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202201200196 and 202201200205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202201200251) 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 3 ways as a sum of consecutive naturals, for example, 402790985 + ... + 402791486.

It is an arithmetic number, because the mean of its divisors is an integer number (50751695736).

Almost surely, 2^202201200221 is an apocalyptic number.

It is an amenable number.

202201200221 is a deficient number, since it is larger than the sum of its proper divisors (805582723).

202201200221 is an equidigital number, since it uses as much as digits as its factorization.

202201200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805582722.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 202201200221 its reverse (122002102202), we get a palindrome (324203302423).

The spelling of 202201200221 in words is "two hundred two billion, two hundred one million, two hundred thousand, two hundred twenty-one".