1224469840000 has 320 divisors, whose sum is σ = 3331101581280. Its totient is φ = 444492800000.

The previous prime is 1224469839991. The next prime is 1224469840019. The reversal of 1224469840000 is 489644221.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 854479284 + ... + 854480716.

Almost surely, 2^{1224469840000} is an apocalyptic number.

1224469840000 is a gapful number since it is divisible by the number (10) 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 1224469840000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1665550790640).

1224469840000 is an abundant number, since it is smaller than the sum of its proper divisors (2106631741280).

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

1224469840000 is an equidigital number, since it uses as much as digits as its factorization.

1224469840000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449 (or 2422 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 1224469840000 in words is "one trillion, two hundred twenty-four billion, four hundred sixty-nine million, eight hundred forty thousand".