1005222212 has 12 divisors (see below), whose sum is σ = 1772568336. Its totient is φ = 498774120.

The previous prime is 1005222203. The next prime is 1005222241. The reversal of 1005222212 is 2122225001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958658 + ... + 959705.

It is an arithmetic number, because the mean of its divisors is an integer number (147714028).

Almost surely, 2^1005222212 is an apocalyptic number.

It is an amenable number.

1005222212 is a deficient number, since it is larger than the sum of its proper divisors (767346124).

1005222212 is a wasteful number, since it uses less digits than its factorization.

1005222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918498 (or 1918496 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1005222212 is about 31705.2395039053. The cubic root of 1005222212 is about 1001.7377159276.

Adding to 1005222212 its reverse (2122225001), we get a palindrome (3127447213).

The spelling of 1005222212 in words is "one billion, five million, two hundred twenty-two thousand, two hundred twelve".