222221013 has 8 divisors (see below), whose sum is σ = 338622528. Its totient is φ = 126983424.

The previous prime is 222220993. The next prime is 222221047. The reversal of 222221013 is 310122222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222221013 - 2⁵ = 222220981 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 222220983 and 222221001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222221063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5290956 + ... + 5290997.

It is an arithmetic number, because the mean of its divisors is an integer number (42327816).

Almost surely, 2^222221013 is an apocalyptic number.

It is an amenable number.

222221013 is a deficient number, since it is larger than the sum of its proper divisors (116401515).

222221013 is a wasteful number, since it uses less digits than its factorization.

222221013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10581963.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 222221013 is about 14907.0792913971. The cubic root of 222221013 is about 605.7057656241.

Adding to 222221013 its reverse (310122222), we get a palindrome (532343235).

The spelling of 222221013 in words is "two hundred twenty-two million, two hundred twenty-one thousand, thirteen".