201222233 has 4 divisors (see below), whose sum is σ = 202233600. Its totient is φ = 200210868.

The previous prime is 201222223. The next prime is 201222253. The reversal of 201222233 is 332222102.

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 a de Polignac number, because none of the positive numbers 2^k-201222233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201222223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505385 + ... + 505782.

It is an arithmetic number, because the mean of its divisors is an integer number (50558400).

Almost surely, 2^201222233 is an apocalyptic number.

It is an amenable number.

201222233 is a deficient number, since it is larger than the sum of its proper divisors (1011367).

201222233 is a wasteful number, since it uses less digits than its factorization.

201222233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011366.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 201222233 is about 14185.2822671951. The cubic root of 201222233 is about 585.9924061420.

Adding to 201222233 its reverse (332222102), we get a palindrome (533444335).

The spelling of 201222233 in words is "two hundred one million, two hundred twenty-two thousand, two hundred thirty-three".