202210221 has 8 divisors (see below), whose sum is σ = 273637984. Its totient is φ = 132794640.

The previous prime is 202210213. The next prime is 202210231. The reversal of 202210221 is 122012202.

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

It is not a de Polignac number, because 202210221 - 2³ = 202210213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202210197 and 202210206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202210231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502810 + ... + 503211.

It is an arithmetic number, because the mean of its divisors is an integer number (34204748).

Almost surely, 2^202210221 is an apocalyptic number.

It is an amenable number.

202210221 is a deficient number, since it is larger than the sum of its proper divisors (71427763).

202210221 is a wasteful number, since it uses less digits than its factorization.

202210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006091.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 202210221 is about 14220.0640293917. The cubic root of 202210221 is about 586.9499022261.

Adding to 202210221 its reverse (122012202), we get a palindrome (324222423).

The spelling of 202210221 in words is "two hundred two million, two hundred ten thousand, two hundred twenty-one".