12031221302200 has 48 divisors (see below), whose sum is σ = 29444831091000. Its totient is φ = 4559199649920.

The previous prime is 12031221302171. The next prime is 12031221302201. The reversal of 12031221302200 is 220312213021.

It is a super-2 number, since 2×12031221302200² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031221302201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1583051635 + ... + 1583059234.

Almost surely, 2^{12031221302200} is an apocalyptic number.

12031221302200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12031221302200 is an abundant number, since it is smaller than the sum of its proper divisors (17413609788800).

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

12031221302200 is a wasteful number, since it uses less digits than its factorization.

12031221302200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3166110904 (or 3166110895 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12031221302200 its reverse (220312213021), we get a palindrome (12251533515221).

The spelling of 12031221302200 in words is "twelve trillion, thirty-one billion, two hundred twenty-one million, three hundred two thousand, two hundred".