221114233 has 2 divisors, whose sum is σ = 221114234. Its totient is φ = 221114232.

The previous prime is 221114221. The next prime is 221114237. The reversal of 221114233 is 332411122.

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., 150503824 + 70610409 = 12268^2 + 8403^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221114233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221114233.

It is not a weakly prime, because it can be changed into another prime (221114237) 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 as a sum of consecutive naturals, namely, 110557116 + 110557117.

It is an arithmetic number, because the mean of its divisors is an integer number (110557117).

Almost surely, 2^221114233 is an apocalyptic number.

It is an amenable number.

221114233 is a deficient number, since it is larger than the sum of its proper divisors (1).

221114233 is an equidigital number, since it uses as much as digits as its factorization.

221114233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 19.

The square root of 221114233 is about 14869.9103225272. The cubic root of 221114233 is about 604.6985115338.

Adding to 221114233 its reverse (332411122), we get a palindrome (553525355).

The spelling of 221114233 in words is "two hundred twenty-one million, one hundred fourteen thousand, two hundred thirty-three".