222212533 has 2 divisors, whose sum is σ = 222212534. Its totient is φ = 222212532.

The previous prime is 222212531. The next prime is 222212539. The reversal of 222212533 is 335212222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219247249 + 2965284 = 14807^2 + 1722^2 .

It is a cyclic number.

It is not a de Polignac number, because 222212533 - 2¹ = 222212531 is a prime.

Together with 222212531, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222212531) 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 as a sum of consecutive naturals, namely, 111106266 + 111106267.

It is an arithmetic number, because the mean of its divisors is an integer number (111106267).

Almost surely, 2^222212533 is an apocalyptic number.

It is an amenable number.

222212533 is a deficient number, since it is larger than the sum of its proper divisors (1).

222212533 is an equidigital number, since it uses as much as digits as its factorization.

222212533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 22.

The square root of 222212533 is about 14906.7948600630. The cubic root of 222212533 is about 605.6980609068.

Adding to 222212533 its reverse (335212222), we get a palindrome (557424755).

The spelling of 222212533 in words is "two hundred twenty-two million, two hundred twelve thousand, five hundred thirty-three".