12204305031212 has 192 divisors, whose sum is σ = 26300424192000. Its totient is φ = 4839401064960.

The previous prime is 12204305031209. The next prime is 12204305031229. The reversal of 12204305031212 is 21213050340221.

It is a super-2 number, since 2×12204305031212² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7183227539 + ... + 7183229237.

It is an arithmetic number, because the mean of its divisors is an integer number (136981376000).

Almost surely, 2^{12204305031212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12204305031212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13150212096000).

12204305031212 is an abundant number, since it is smaller than the sum of its proper divisors (14096119160788).

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

12204305031212 is a wasteful number, since it uses less digits than its factorization.

12204305031212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404 (or 3402 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 12204305031212 its reverse (21213050340221), we get a palindrome (33417355371433).

The spelling of 12204305031212 in words is "twelve trillion, two hundred four billion, three hundred five million, thirty-one thousand, two hundred twelve".