1222323212 has 12 divisors (see below), whose sum is σ = 2333526216. Its totient is φ = 555601440.

The previous prime is 1222323209. The next prime is 1222323229. The reversal of 1222323212 is 2123232221.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13889993 + ... + 13890080.

It is an arithmetic number, because the mean of its divisors is an integer number (194460518).

Almost surely, 2^1222323212 is an apocalyptic number.

It is an amenable number.

1222323212 is a deficient number, since it is larger than the sum of its proper divisors (1111203004).

1222323212 is a wasteful number, since it uses less digits than its factorization.

1222323212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27780088 (or 27780086 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 1222323212 is about 34961.7392587955. The cubic root of 1222323212 is about 1069.2075572039.

Adding to 1222323212 its reverse (2123232221), we get a palindrome (3345555433).

Subtracting 1222323212 from its reverse (2123232221), we obtain a palindrome (900909009).

The spelling of 1222323212 in words is "one billion, two hundred twenty-two million, three hundred twenty-three thousand, two hundred twelve".