222604213 has 4 divisors (see below), whose sum is σ = 239727628. Its totient is φ = 205480800.

The previous prime is 222604201. The next prime is 222604223. The reversal of 222604213 is 312406222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312406222 = 2 ⋅156203111.

It can be written as a sum of positive squares in 2 ways, for example, as 15186609 + 207417604 = 3897^2 + 14402^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222604213 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 (222604223) 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, 8561688 + ... + 8561713.

It is an arithmetic number, because the mean of its divisors is an integer number (59931907).

Almost surely, 2^222604213 is an apocalyptic number.

It is an amenable number.

222604213 is a deficient number, since it is larger than the sum of its proper divisors (17123415).

222604213 is a wasteful number, since it uses less digits than its factorization.

222604213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17123414.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 222604213 is about 14919.9267089353. The cubic root of 222604213 is about 606.0537272598.

The spelling of 222604213 in words is "two hundred twenty-two million, six hundred four thousand, two hundred thirteen".