222443142205 has 4 divisors (see below), whose sum is σ = 266931770652. Its totient is φ = 177954513760.

The previous prime is 222443142193. The next prime is 222443142209. The reversal of 222443142205 is 502241344222.

It is a happy number.

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 57774371769 + 164668770436 = 240363^2 + 405794^2 .

It is not a de Polignac number, because 222443142205 - 2⁹ = 222443141693 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 (222443142209) 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, 22244314216 + ... + 22244314225.

It is an arithmetic number, because the mean of its divisors is an integer number (66732942663).

Almost surely, 2^222443142205 is an apocalyptic number.

It is an amenable number.

222443142205 is a deficient number, since it is larger than the sum of its proper divisors (44488628447).

222443142205 is an equidigital number, since it uses as much as digits as its factorization.

222443142205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44488628446.

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 222443142205 its reverse (502241344222), we get a palindrome (724684486427).

The spelling of 222443142205 in words is "two hundred twenty-two billion, four hundred forty-three million, one hundred forty-two thousand, two hundred five".