112202221 has 2 divisors, whose sum is σ = 112202222.
Its totient is φ = 112202220.
The previous prime is 112202177. The next prime is 112202263. The reversal of 112202221 is 122202211.
Adding to 112202221 its reverse (122202211), we get a palindrome (234404432).
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 77686596 + 34515625 = 8814^2 + 5875^2
It is a cyclic number.
It is not a de Polignac number, because 112202221 - 29 = 112201709 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (112202021) 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 as a sum of consecutive naturals, namely, 56101110 + 56101111.
It is an arithmetic number, because the mean of its divisors is an integer number (56101111).
Almost surely, 2112202221 is an apocalyptic number.
It is an amenable number.
112202221 is a deficient number, since it is larger than the sum of its proper divisors (1).
112202221 is an equidigital number, since it uses as much as digits as its factorization.
112202221 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 32, while the sum is 13.
The square root of 112202221 is about 10592.5549797960.
The cubic root of 112202221 is about 482.3183863726.
The spelling of 112202221 in words is "one hundred twelve million, two hundred two thousand, two hundred twenty-one".