1222012312 has 32 divisors (see below), whose sum is σ = 2367406080. Its totient is φ = 590741280.

The previous prime is 1222012301. The next prime is 1222012321. The reversal of 1222012312 is 2132102221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410943 + ... + 413905.

It is an arithmetic number, because the mean of its divisors is an integer number (73981440).

Almost surely, 2^1222012312 is an apocalyptic number.

It is an amenable number.

1222012312 is a deficient number, since it is larger than the sum of its proper divisors (1145393768).

1222012312 is a wasteful number, since it uses less digits than its factorization.

1222012312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4663 (or 4659 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1222012312 is about 34957.2926869344. The cubic root of 1222012312 is about 1069.1168979266.

Adding to 1222012312 its reverse (2132102221), we get a palindrome (3354114533).

The spelling of 1222012312 in words is "one billion, two hundred twenty-two million, twelve thousand, three hundred twelve".