2212222312 has 16 divisors (see below), whose sum is σ = 4290948900. Its totient is φ = 1067969280.

The previous prime is 2212222303. The next prime is 2212222321. The reversal of 2212222312 is 2132222122.

It is an interprime number because it is at equal distance from previous prime (2212222303) and next prime (2212222321).

It can be written as a sum of positive squares in 2 ways, for example, as 2195297316 + 16924996 = 46854^2 + 4114^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2212222312.

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, 4767489 + ... + 4767952.

Almost surely, 2^2212222312 is an apocalyptic number.

It is an amenable number.

2212222312 is a deficient number, since it is larger than the sum of its proper divisors (2078726588).

2212222312 is a wasteful number, since it uses less digits than its factorization.

2212222312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9535476 (or 9535472 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 2212222312 is about 47034.2674228057. The cubic root of 2212222312 is about 1302.9955206822.

Adding to 2212222312 its reverse (2132222122), we get a palindrome (4344444434).

The spelling of 2212222312 in words is "two billion, two hundred twelve million, two hundred twenty-two thousand, three hundred twelve".