222310213 has 4 divisors (see below), whose sum is σ = 222786720. Its totient is φ = 221833708.

The previous prime is 222310189. The next prime is 222310219. The reversal of 222310213 is 312013222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312013222 = 2 ⋅156006611.

It is a cyclic number.

It is not a de Polignac number, because 222310213 - 2⁵ = 222310181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222310219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237553 + ... + 238486.

It is an arithmetic number, because the mean of its divisors is an integer number (55696680).

Almost surely, 2^222310213 is an apocalyptic number.

It is an amenable number.

222310213 is a deficient number, since it is larger than the sum of its proper divisors (476507).

222310213 is an equidigital number, since it uses as much as digits as its factorization.

222310213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476506.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 222310213 is about 14910.0708583159. The cubic root of 222310213 is about 605.7867986552.

Adding to 222310213 its reverse (312013222), we get a palindrome (534323435).

The spelling of 222310213 in words is "two hundred twenty-two million, three hundred ten thousand, two hundred thirteen".