12122112120200 has 48 divisors (see below), whose sum is σ = 28442478718500. Its totient is φ = 4804360024320.

The previous prime is 12122112120193. The next prime is 12122112120203. The reversal of 12122112120200 is 202121122121.

It can be written as a sum of positive squares in 6 ways, for example, as 1515769719556 + 10606342400644 = 1231166^2 + 3256738^2 .

It is not an unprimeable number, because it can be changed into a prime (12122112120203) 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, 278008295 + ... + 278051894.

Almost surely, 2^{12122112120200} is an apocalyptic number.

12122112120200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122112120200 is an abundant number, since it is smaller than the sum of its proper divisors (16320366598300).

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

12122112120200 is a wasteful number, since it uses less digits than its factorization.

12122112120200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556060314 (or 556060305 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12122112120200 its reverse (202121122121), we get a palindrome (12324233242321).

The spelling of 12122112120200 in words is "twelve trillion, one hundred twenty-two billion, one hundred twelve million, one hundred twenty thousand, two hundred".