222124013 has 4 divisors (see below), whose sum is σ = 222395388. Its totient is φ = 221852640.

The previous prime is 222123983. The next prime is 222124027. The reversal of 222124013 is 310421222.

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 72624484 + 149499529 = 8522^2 + 12227^2 .

It is a cyclic number.

It is not a de Polignac number, because 222124013 - 2¹⁴ = 222107629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222123982 and 222124000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222124613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134456 + ... + 136097.

It is an arithmetic number, because the mean of its divisors is an integer number (55598847).

Almost surely, 2^222124013 is an apocalyptic number.

It is an amenable number.

222124013 is a deficient number, since it is larger than the sum of its proper divisors (271375).

222124013 is an equidigital number, since it uses as much as digits as its factorization.

222124013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271374.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 222124013 is about 14903.8254485216. The cubic root of 222124013 is about 605.6176221294.

Adding to 222124013 its reverse (310421222), we get a palindrome (532545235).

The spelling of 222124013 in words is "two hundred twenty-two million, one hundred twenty-four thousand, thirteen".