1224120012312 has 64 divisors (see below), whose sum is σ = 3064008578400. Its totient is φ = 407545825280.

The previous prime is 1224120012307. The next prime is 1224120012343. The reversal of 1224120012312 is 2132100214221.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 85470112 + ... + 85484432.

Almost surely, 2^{1224120012312} is an apocalyptic number.

1224120012312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1224120012312 is an abundant number, since it is smaller than the sum of its proper divisors (1839888566088).

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

1224120012312 is a wasteful number, since it uses less digits than its factorization.

1224120012312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18396 (or 18392 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1224120012312 its reverse (2132100214221), we get a palindrome (3356220226533).

The spelling of 1224120012312 in words is "one trillion, two hundred twenty-four billion, one hundred twenty million, twelve thousand, three hundred twelve".