1222247612 has 6 divisors (see below), whose sum is σ = 2138933328. Its totient is φ = 611123804.

The previous prime is 1222247581. The next prime is 1222247641. The reversal of 1222247612 is 2167422221.

It is a congruent 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 as a sum of consecutive naturals, namely, 152780948 + ... + 152780955.

It is an arithmetic number, because the mean of its divisors is an integer number (356488888).

Almost surely, 2^1222247612 is an apocalyptic number.

It is an amenable number.

1222247612 is a deficient number, since it is larger than the sum of its proper divisors (916685716).

1222247612 is a wasteful number, since it uses less digits than its factorization.

1222247612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305561907 (or 305561905 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 1222247612 is about 34960.6580601681. The cubic root of 1222247612 is about 1069.1855134550.

Adding to 1222247612 its reverse (2167422221), we get a palindrome (3389669833).

The spelling of 1222247612 in words is "one billion, two hundred twenty-two million, two hundred forty-seven thousand, six hundred twelve".