12221321313300 has 144 divisors (see below), whose sum is σ = 39039693299712. Its totient is φ = 2927048777600.

The previous prime is 12221321313269. The next prime is 12221321313301. The reversal of 12221321313300 is 331312312221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221321313301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22035924 + ... + 22583723.

It is an arithmetic number, because the mean of its divisors is an integer number (271108981248).

Almost surely, 2^{12221321313300} is an apocalyptic number.

12221321313300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221321313300 is an abundant number, since it is smaller than the sum of its proper divisors (26818371986412).

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

12221321313300 is a wasteful number, since it uses less digits than its factorization.

12221321313300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44619758 (or 44619751 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 12221321313300 its reverse (331312312221), we get a palindrome (12552633625521).

The spelling of 12221321313300 in words is "twelve trillion, two hundred twenty-one billion, three hundred twenty-one million, three hundred thirteen thousand, three hundred".