222442237 has 2 divisors, whose sum is σ = 222442238. Its totient is φ = 222442236.

The previous prime is 222442217. The next prime is 222442247. The reversal of 222442237 is 732244222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219365721 + 3076516 = 14811^2 + 1754^2 .

It is a cyclic number.

It is not a de Polignac number, because 222442237 - 2²³ = 214053629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222442217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111221118 + 111221119.

It is an arithmetic number, because the mean of its divisors is an integer number (111221119).

Almost surely, 2^222442237 is an apocalyptic number.

It is an amenable number.

222442237 is a deficient number, since it is larger than the sum of its proper divisors (1).

222442237 is an equidigital number, since it uses as much as digits as its factorization.

222442237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 28.

The square root of 222442237 is about 14914.4975443358. The cubic root of 222442237 is about 605.9066950350.

Adding to 222442237 its reverse (732244222), we get a palindrome (954686459).

The spelling of 222442237 in words is "two hundred twenty-two million, four hundred forty-two thousand, two hundred thirty-seven".