222124205 has 4 divisors (see below), whose sum is σ = 266549052. Its totient is φ = 177699360.

The previous prime is 222124129. The next prime is 222124211. The reversal of 222124205 is 502421222.

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 161315401 + 60808804 = 12701^2 + 7798^2 .

It is not a de Polignac number, because 222124205 - 2¹⁸ = 221862061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22212416 + ... + 22212425.

It is an arithmetic number, because the mean of its divisors is an integer number (66637263).

Almost surely, 2^222124205 is an apocalyptic number.

It is an amenable number.

222124205 is a deficient number, since it is larger than the sum of its proper divisors (44424847).

222124205 is an equidigital number, since it uses as much as digits as its factorization.

222124205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44424846.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 222124205 is about 14903.8318898195. The cubic root of 222124205 is about 605.6177966244.

Adding to 222124205 its reverse (502421222), we get a palindrome (724545427).

The spelling of 222124205 in words is "two hundred twenty-two million, one hundred twenty-four thousand, two hundred five".