1005222213 has 36 divisors (see below), whose sum is σ = 1520002432. Its totient is φ = 639491760.

The previous prime is 1005222203. The next prime is 1005222241. The reversal of 1005222213 is 3122225001.

It is not a de Polignac number, because 1005222213 - 2⁵ = 1005222181 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005222203) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1921770 + ... + 1922292.

Almost surely, 2^1005222213 is an apocalyptic number.

It is an amenable number.

1005222213 is a deficient number, since it is larger than the sum of its proper divisors (514780219).

1005222213 is an equidigital number, since it uses as much as digits as its factorization.

1005222213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1005222213 is about 31705.2395196756. The cubic root of 1005222213 is about 1001.7377162598.

Adding to 1005222213 its reverse (3122225001), we get a palindrome (4127447214).

The spelling of 1005222213 in words is "one billion, five million, two hundred twenty-two thousand, two hundred thirteen".