202224221 has 8 divisors (see below), whose sum is σ = 213649920. Its totient is φ = 191095408.

The previous prime is 202224199. The next prime is 202224233. The reversal of 202224221 is 122422202.

202224221 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 a cyclic number.

It is not a de Polignac number, because 202224221 - 2²² = 198029917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202224221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202224251) 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, 72821 + ... + 75546.

It is an arithmetic number, because the mean of its divisors is an integer number (26706240).

Almost surely, 2^202224221 is an apocalyptic number.

It is an amenable number.

202224221 is a deficient number, since it is larger than the sum of its proper divisors (11425699).

202224221 is a wasteful number, since it uses less digits than its factorization.

202224221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148443.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 202224221 is about 14220.5562830713. The cubic root of 202224221 is about 586.9634477151.

Adding to 202224221 its reverse (122422202), we get a palindrome (324646423).

The spelling of 202224221 in words is "two hundred two million, two hundred twenty-four thousand, two hundred twenty-one".