1223012333312 has 144 divisors (see below), whose sum is σ = 3141816244224. Its totient is φ = 461127168000.

The previous prime is 1223012333237. The next prime is 1223012333377. The reversal of 1223012333312 is 2133332103221.

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, 389639 + ... + 1611782.

Almost surely, 2^{1223012333312} is an apocalyptic number.

It is an amenable number.

1223012333312 is an abundant number, since it is smaller than the sum of its proper divisors (1918803910912).

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

1223012333312 is a wasteful number, since it uses less digits than its factorization.

1223012333312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001486 (or 2001472 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 1223012333312 its reverse (2133332103221), we get a palindrome (3356344436533).

The spelling of 1223012333312 in words is "one trillion, two hundred twenty-three billion, twelve million, three hundred thirty-three thousand, three hundred twelve".