2142222205 has 8 divisors (see below), whose sum is σ = 2597168952. Its totient is φ = 1696109568.

The previous prime is 2142222191. The next prime is 2142222253. The reversal of 2142222205 is 5022222412.

It can be written as a sum of positive squares in 4 ways, for example, as 63409369 + 2078812836 = 7963^2 + 45594^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2142222205 - 2⁹ = 2142221693 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 7 ways as a sum of consecutive naturals, for example, 2207992 + ... + 2208961.

It is an arithmetic number, because the mean of its divisors is an integer number (324646119).

Almost surely, 2^2142222205 is an apocalyptic number.

It is an amenable number.

2142222205 is a deficient number, since it is larger than the sum of its proper divisors (454946747).

2142222205 is an equidigital number, since it uses as much as digits as its factorization.

2142222205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4417055.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 2142222205 is about 46284.1463678439. The cubic root of 2142222205 is about 1289.1046418022.

Adding to 2142222205 its reverse (5022222412), we get a palindrome (7164444617).

The spelling of 2142222205 in words is "two billion, one hundred forty-two million, two hundred twenty-two thousand, two hundred five".