222312201 has 4 divisors (see below), whose sum is σ = 296416272. Its totient is φ = 148208132.

The previous prime is 222312199. The next prime is 222312221. The reversal of 222312201 is 102213222.

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 222312201 - 2¹ = 222312199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222312221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37052031 + ... + 37052036.

It is an arithmetic number, because the mean of its divisors is an integer number (74104068).

Almost surely, 2^222312201 is an apocalyptic number.

It is an amenable number.

222312201 is a deficient number, since it is larger than the sum of its proper divisors (74104071).

222312201 is an equidigital number, since it uses as much as digits as its factorization.

222312201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74104070.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 222312201 is about 14910.1375245167. The cubic root of 222312201 is about 605.7886043911.

Adding to 222312201 its reverse (102213222), we get a palindrome (324525423).

The spelling of 222312201 in words is "two hundred twenty-two million, three hundred twelve thousand, two hundred one".