12221230123300 has 144 divisors (see below), whose sum is σ = 29086044624000. Its totient is φ = 4420279987200.

The previous prime is 12221230123283. The next prime is 12221230123313. The reversal of 12221230123300 is 332103212221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 825026694 + ... + 825041506.

It is an arithmetic number, because the mean of its divisors is an integer number (201986421000).

Almost surely, 2^{12221230123300} is an apocalyptic number.

12221230123300 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 12221230123300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14543022312000).

12221230123300 is an abundant number, since it is smaller than the sum of its proper divisors (16864814500700).

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

12221230123300 is a wasteful number, since it uses less digits than its factorization.

12221230123300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18806 (or 18799 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12221230123300 its reverse (332103212221), we get a palindrome (12553333335521).

The spelling of 12221230123300 in words is "twelve trillion, two hundred twenty-one billion, two hundred thirty million, one hundred twenty-three thousand, three hundred".