222432013 has 4 divisors (see below), whose sum is σ = 223223868. Its totient is φ = 221640160.

The previous prime is 222431981. The next prime is 222432017. The reversal of 222432013 is 310234222.

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

It can be written as a sum of positive squares in 2 ways, for example, as 131744484 + 90687529 = 11478^2 + 9523^2 .

It is a cyclic number.

It is not a de Polignac number, because 222432013 - 2⁵ = 222431981 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 (222432017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395506 + ... + 396067.

It is an arithmetic number, because the mean of its divisors is an integer number (55805967).

Almost surely, 2^222432013 is an apocalyptic number.

It is an amenable number.

222432013 is a deficient number, since it is larger than the sum of its proper divisors (791855).

222432013 is an equidigital number, since it uses as much as digits as its factorization.

222432013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791854.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 222432013 is about 14914.1547866448. The cubic root of 222432013 is about 605.8974118985.

Adding to 222432013 its reverse (310234222), we get a palindrome (532666235).

The spelling of 222432013 in words is "two hundred twenty-two million, four hundred thirty-two thousand, thirteen".