33222289 has 2 divisors, whose sum is σ = 33222290. Its totient is φ = 33222288.

The previous prime is 33222283. The next prime is 33222331. The reversal of 33222289 is 98222233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30305025 + 2917264 = 5505^2 + 1708^2 .

It is an emirp because it is prime and its reverse (98222233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33222289 - 2⁵ = 33222257 is a prime.

It is a super-2 number, since 2×33222289² = 2207440972799042, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33222289.

It is not a weakly prime, because it can be changed into another prime (33222283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16611144 + 16611145.

It is an arithmetic number, because the mean of its divisors is an integer number (16611145).

Almost surely, 2^33222289 is an apocalyptic number.

It is an amenable number.

33222289 is a deficient number, since it is larger than the sum of its proper divisors (1).

33222289 is an equidigital number, since it uses as much as digits as its factorization.

33222289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 31.

The square root of 33222289 is about 5763.8779480485. The cubic root of 33222289 is about 321.4720235390.

The spelling of 33222289 in words is "thirty-three million, two hundred twenty-two thousand, two hundred eighty-nine".