1223049808512 has 448 divisors, whose sum is σ = 4319056828800. Its totient is φ = 337387825152.

The previous prime is 1223049808501. The next prime is 1223049808523. The reversal of 1223049808512 is 2158089403221.

1223049808512 is a `hidden beast` number, since 1 + 22 + 30 + 4 + 9 + 80 + 8 + 512 = 666.

It is an interprime number because it is at equal distance from previous prime (1223049808501) and next prime (1223049808523).

It is a tau number, because it is divible by the number of its divisors (448).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 18910053 + ... + 18974619.

It is an arithmetic number, because the mean of its divisors is an integer number (9640751850).

Almost surely, 2^{1223049808512} is an apocalyptic number.

1223049808512 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 1223049808512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2159528414400).

1223049808512 is an abundant number, since it is smaller than the sum of its proper divisors (3096007020288).

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

1223049808512 is an frugal number, since it uses more digits than its factorization.

1223049808512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64635 (or 64608 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 1223049808512 in words is "one trillion, two hundred twenty-three billion, forty-nine million, eight hundred eight thousand, five hundred twelve".