1222312312 has 16 divisors (see below), whose sum is σ = 2468130840. Its totient is φ = 564144096.

The previous prime is 1222312277. The next prime is 1222312319. The reversal of 1222312312 is 2132132221.

It is a self number, because there is not a number n which added to its sum of digits gives 1222312312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222312319) by changing a digit.

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, 5876398 + ... + 5876605.

Almost surely, 2^1222312312 is an apocalyptic number.

It is an amenable number.

1222312312 is an abundant number, since it is smaller than the sum of its proper divisors (1245818528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222312312 is a wasteful number, since it uses less digits than its factorization.

1222312312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11753022 (or 11753018 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 1222312312 is about 34961.5833737547. The cubic root of 1222312312 is about 1069.2043789946.

Adding to 1222312312 its reverse (2132132221), we get a palindrome (3354444533).

The spelling of 1222312312 in words is "one billion, two hundred twenty-two million, three hundred twelve thousand, three hundred twelve".