201222113 has 4 divisors (see below), whose sum is σ = 201575088. Its totient is φ = 200869140.

The previous prime is 201222067. The next prime is 201222121. The reversal of 201222113 is 311222102.

It is a happy number.

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 201222113 - 2⁸ = 201221857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201222163) 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, 175631 + ... + 176772.

It is an arithmetic number, because the mean of its divisors is an integer number (50393772).

Almost surely, 2^201222113 is an apocalyptic number.

It is an amenable number.

201222113 is a deficient number, since it is larger than the sum of its proper divisors (352975).

201222113 is an equidigital number, since it uses as much as digits as its factorization.

201222113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352974.

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

The square root of 201222113 is about 14185.2780374584. The cubic root of 201222113 is about 585.9922896554.

Adding to 201222113 its reverse (311222102), we get a palindrome (512444215).

The spelling of 201222113 in words is "two hundred one million, two hundred twenty-two thousand, one hundred thirteen".