222434213 has 2 divisors, whose sum is σ = 222434214. Its totient is φ = 222434212.

The previous prime is 222434209. The next prime is 222434257. The reversal of 222434213 is 312434222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214827649 + 7606564 = 14657^2 + 2758^2 .

It is a cyclic number.

It is not a de Polignac number, because 222434213 - 2² = 222434209 is a prime.

It is a super-2 number, since 2×222434213² = 98953958225858738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222434413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111217106 + 111217107.

It is an arithmetic number, because the mean of its divisors is an integer number (111217107).

Almost surely, 2^222434213 is an apocalyptic number.

It is an amenable number.

222434213 is a deficient number, since it is larger than the sum of its proper divisors (1).

222434213 is an equidigital number, since it uses as much as digits as its factorization.

222434213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 23.

The square root of 222434213 is about 14914.2285418992. The cubic root of 222434213 is about 605.8994094675.

Adding to 222434213 its reverse (312434222), we get a palindrome (534868435).

Subtracting 222434213 from its reverse (312434222), we obtain a palindrome (90000009).

The spelling of 222434213 in words is "two hundred twenty-two million, four hundred thirty-four thousand, two hundred thirteen".