1222303320100 has 72 divisors (see below), whose sum is σ = 2876919880968. Its totient is φ = 448937779200.

The previous prime is 1222303320047. The next prime is 1222303320107. The reversal of 1222303320100 is 10233032221.

It can be written as a sum of positive squares in 12 ways, for example, as 252283189284 + 970020130816 = 502278^2 + 984896^2 .

It is not an unprimeable number, because it can be changed into a prime (1222303320107) 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, 8698617 + ... + 8838016.

It is an arithmetic number, because the mean of its divisors is an integer number (39957220569).

Almost surely, 2^{1222303320100} is an apocalyptic number.

1222303320100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222303320100 is an abundant number, since it is smaller than the sum of its proper divisors (1654616560868).

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

1222303320100 is a wasteful number, since it uses less digits than its factorization.

1222303320100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17536705 (or 17536698 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1222303320100 its reverse (10233032221), we get a palindrome (1232536352321).

The spelling of 1222303320100 in words is "one trillion, two hundred twenty-two billion, three hundred three million, three hundred twenty thousand, one hundred".