1223374686912 has 168 divisors, whose sum is σ = 4008989793536. Its totient is φ = 349407696384.

The previous prime is 1223374686907. The next prime is 1223374686913. The reversal of 1223374686912 is 2196864733221.

1223374686912 is a `hidden beast` number, since 122 + 3 + 374 + 68 + 6 + 91 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1223374686913) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 11247573 + ... + 11355819.

Almost surely, 2^{1223374686912} is an apocalyptic number.

1223374686912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223374686912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2004494896768).

1223374686912 is an abundant number, since it is smaller than the sum of its proper divisors (2785615106624).

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

1223374686912 is a wasteful number, since it uses less digits than its factorization.

1223374686912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111075 (or 111062 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

It can be divided in two parts, 122337 and 4686912, that added together give a square (4809249 = 2193²).

The spelling of 1223374686912 in words is "one trillion, two hundred twenty-three billion, three hundred seventy-four million, six hundred eighty-six thousand, nine hundred twelve".