202210201221 has 8 divisors (see below), whose sum is σ = 308129830464. Its totient is φ = 115548686400.

The previous prime is 202210201199. The next prime is 202210201231. The reversal of 202210201221 is 122102012202.

202210201221 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 202210201221 - 2¹⁰ = 202210200197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202210201221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202210201231) 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, 4814528580 + ... + 4814528621.

It is an arithmetic number, because the mean of its divisors is an integer number (38516228808).

Almost surely, 2^202210201221 is an apocalyptic number.

202210201221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

202210201221 is a deficient number, since it is larger than the sum of its proper divisors (105919629243).

202210201221 is an equidigital number, since it uses as much as digits as its factorization.

202210201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9629057211.

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

Adding to 202210201221 its reverse (122102012202), we get a palindrome (324312213423).

The spelling of 202210201221 in words is "two hundred two billion, two hundred ten million, two hundred one thousand, two hundred twenty-one".