222111013 has 4 divisors (see below), whose sum is σ = 222168960. Its totient is φ = 222053068.

The previous prime is 222111011. The next prime is 222111017. The reversal of 222111013 is 310111222.

222111013 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222111013 - 2¹ = 222111011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222110984 and 222111002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222111011) 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, 22783 + ... + 31036.

It is an arithmetic number, because the mean of its divisors is an integer number (55542240).

Almost surely, 2^222111013 is an apocalyptic number.

It is an amenable number.

222111013 is a deficient number, since it is larger than the sum of its proper divisors (57947).

222111013 is an equidigital number, since it uses as much as digits as its factorization.

222111013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57946.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 222111013 is about 14903.3893125020. The cubic root of 222111013 is about 605.6058071339.

Adding to 222111013 its reverse (310111222), we get a palindrome (532222235).

The spelling of 222111013 in words is "two hundred twenty-two million, one hundred eleven thousand, thirteen".