33222223 has 2 divisors, whose sum is σ = 33222224. Its totient is φ = 33222222.

The previous prime is 33222191. The next prime is 33222239. The reversal of 33222223 is 32222233.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33222223 - 2⁵ = 33222191 is a prime.

It is a super-2 number, since 2×33222223² = 2207432202123458, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33222223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33222253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16611111 + 16611112.

It is an arithmetic number, because the mean of its divisors is an integer number (16611112).

Almost surely, 2^33222223 is an apocalyptic number.

33222223 is a deficient number, since it is larger than the sum of its proper divisors (1).

33222223 is an equidigital number, since it uses as much as digits as its factorization.

33222223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 19.

The square root of 33222223 is about 5763.8722227336. The cubic root of 33222223 is about 321.4718106581.

Adding to 33222223 its reverse (32222233), we get a palindrome (65444456).

It can be divided in two parts, 3 and 3222223, that multiplied together give a palindrome (9666669).

The spelling of 33222223 in words is "thirty-three million, two hundred twenty-two thousand, two hundred twenty-three".