223221602 has 4 divisors (see below), whose sum is σ = 334832406. Its totient is φ = 111610800.

The previous prime is 223221599. The next prime is 223221653. The reversal of 223221602 is 206122322.

223221602 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 205320241 + 17901361 = 14329^2 + 4231^2 .

It is a super-3 number, since 3×223221602³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55805399 + ... + 55805402.

Almost surely, 2^223221602 is an apocalyptic number.

223221602 is a deficient number, since it is larger than the sum of its proper divisors (111610804).

223221602 is a wasteful number, since it uses less digits than its factorization.

223221602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111610803.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 223221602 is about 14940.6024644256. The cubic root of 223221602 is about 606.6135033047.

Adding to 223221602 its reverse (206122322), we get a palindrome (429343924).

The spelling of 223221602 in words is "two hundred twenty-three million, two hundred twenty-one thousand, six hundred two".