1222344556800 has 216 divisors, whose sum is σ = 4127808240864. Its totient is φ = 318377902080.

The previous prime is 1222344556789. The next prime is 1222344556819. The reversal of 1222344556800 is 86554432221.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85324 + ... + 1565876.

Almost surely, 2^{1222344556800} is an apocalyptic number.

1222344556800 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 1222344556800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2063904120432).

1222344556800 is an abundant number, since it is smaller than the sum of its proper divisors (2905463684064).

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

1222344556800 is a wasteful number, since it uses less digits than its factorization.

1222344556800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480625 (or 1480606 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 1222344556800 in words is "one trillion, two hundred twenty-two billion, three hundred forty-four million, five hundred fifty-six thousand, eight hundred".