202221113 has 4 divisors (see below), whose sum is σ = 202417908. Its totient is φ = 202024320.

The previous prime is 202221109. The next prime is 202221121. The reversal of 202221113 is 311122202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 182034064 + 20187049 = 13492^2 + 4493^2 .

It is a cyclic number.

It is not a de Polignac number, because 202221113 - 2² = 202221109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202221193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96848 + ... + 98913.

It is an arithmetic number, because the mean of its divisors is an integer number (50604477).

Almost surely, 2^202221113 is an apocalyptic number.

It is an amenable number.

202221113 is a deficient number, since it is larger than the sum of its proper divisors (196795).

202221113 is a wasteful number, since it uses less digits than its factorization.

202221113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196794.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 202221113 is about 14220.4470042260. The cubic root of 202221113 is about 586.9604406705.

Adding to 202221113 its reverse (311122202), we get a palindrome (513343315).

The spelling of 202221113 in words is "two hundred two million, two hundred twenty-one thousand, one hundred thirteen".