1002222205 has 4 divisors (see below), whose sum is σ = 1202666652. Its totient is φ = 801777760.

The previous prime is 1002222121. The next prime is 1002222229. The reversal of 1002222205 is 5022222001.

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 445167801 + 557054404 = 21099^2 + 23602^2 .

It is not a de Polignac number, because 1002222205 - 2¹⁷ = 1002091133 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, 100222216 + ... + 100222225.

It is an arithmetic number, because the mean of its divisors is an integer number (300666663).

Almost surely, 2^1002222205 is an apocalyptic number.

It is an amenable number.

1002222205 is a deficient number, since it is larger than the sum of its proper divisors (200444447).

1002222205 is an equidigital number, since it uses as much as digits as its factorization.

1002222205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200444446.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1002222205 is about 31657.8932495515. The cubic root of 1002222205 is about 1000.7401869880.

Adding to 1002222205 its reverse (5022222001), we get a palindrome (6024444206).

The spelling of 1002222205 in words is "one billion, two million, two hundred twenty-two thousand, two hundred five".